Answer:
(x+1)(x-1)
Step-by-step explanation:
The solutions 1 and - 1 is given when
x = 1 or x = - 1
hence; (x - 1) = 0 or (x + 1) = 0
(x - 1)(x + 1) = 0
x² -1 = 0
Mark as brainliest answer please. Thanks
Which fractions have a LCD of 84?
100 Point's 50 points each have a blessed day
The fractions have a LCD of 84 is option C, 2/21,1/4,1/3.
Given:
3/14,1/42,1/6
= 3/14 + 1/42 + 1/6
= 9+42+7 / 42
The LCD is 42 not 84.
2/84,1/16,1/42
= 6+21+8 / 336
The LCD is 336 not 84
2/21,1/4,1/3
= 8+21+28 / 84
The LCD is 84
2/3,1/6,1/7
= 28+7+6 / 42
The LCD is 42 not 84
Therefore the fractions have a LCD of 84 is option C, 2/21,1/4,1/3.
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Answer:
[tex]\textsf{C)} \quad \dfrac{2}{21}, \dfrac{1}{4}, \dfrac{1}{3}[/tex]
Step-by-step explanation:
The least common denominator (LCD) is the smallest number that is exactly divisible by each denominator of a set of fractions.
To find the LCD of a set of fractions, reduce the fractions to their smallest equivalent, list the multiples of each denominator, then locate the smallest common number.
[tex]\textsf{A)} \quad \dfrac{3}{14}, \dfrac{1}{42}, \dfrac{1}{6}[/tex]
Multiples of 14: 14, 28, 42, 56, 70, 84, 98, ...
Multiples of 42: 42, 84, 126, 168, 210, ...
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, ...
Therefore, the LCD is 42.
[tex]\textsf{B)} \quad \dfrac{2}{84}, \dfrac{1}{16}, \dfrac{1}{42}=\dfrac{1}{42}, \dfrac{1}{16}, \dfrac{1}{42}[/tex]
Multiples of 42: 42, 84, 126, 168, 210, 252, 294, 336, ...
Multiples of 16: 16, 32, 48, 64, 80, 96, 112, ... , 336, ...
Therefore, the LCD is 336.
[tex]\textsf{C)} \quad \dfrac{2}{21}, \dfrac{1}{4}, \dfrac{1}{3}[/tex]
Multiples of 21: 21, 42, 63, 84, 105, 126, 147, ...
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, ... , 84, 88, ...
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, ... , 84, 87, ...
Therefore, the LCD is 84.
[tex]\textsf{D)} \quad \dfrac{2}{3}, \dfrac{1}{6}, \dfrac{1}{7}[/tex]
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, ... , 42, 45, ...
Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, ...
Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, ...
Therefore, the LCD is 42.
Find the equation (in slope-intercept form) of the line with the given slope that passes through the point with the given coordinates.
slope: −43, ordered pair: (0,−25)
Answer:
[tex] \huge{ \bold{y = - 43x - 25}}[/tex]
Step-by-step explanation:
Equation of a line in slope-intercept form is given by
[tex]y = mx + c[/tex]
where
m is the slope
c is the y intercept
From the question
m = - 43
In order to find c we substitute the point (0,−25) into the equation y = mx + c
That's
[tex] - 25 = - 43(0) + c \\ - 25 = 0 + c \\ c = - 25[/tex]
We now substitute m and c into the equation
We have the final answer as
[tex] \bold{y = - 43x - 25}[/tex]
Hope this helps you
Find the equation for a polynomial f(x) that satisfies
▪ Degree 5
▪ Root of multiplicity 2 at x =
= -4
▪ Root of multiplicity 1 at x = -1
■ Root of multiplicity 2 at x = -2
▪y-intercept of (0, 128)
The polynomial function that has the degree of 5 is written as f(x) = 2x⁵ + 26x⁴ + 128x³ + 296x² + 320x + 128
Polynomial function:
The equations formed with variables, exponents and coefficients are known as the polynomial equations. And it can have different exponents, where the higher one is called the degree of the equation.
Given,
Here we have the following things,
Degree = 5
Root of multiplicity 2 is x = -4
Root of multiplicity 1 at x = -1
Root of multiplicity 2 at x = -2
y-intercept of (0, 128)
Here we need to find the polynomial equation of the function.
According to the given roots of multiplicity, we have the factors of the polynomials are,
=> (x + 4)² (x + 1) (x + 2)²
So, the general form of the polynomial function can be written as,
=> f(x) = A (x + 4)² (x + 1) (x + 2)²
In order to find the 5 degree polynomial function, we have to calculate the value of A.
To Find the value of A, we have to apply the y - intercept point on the equation then we get,
=> 128 = A (0 + 4)² (0 + 1) (0 + 2)²
=> 128 = A (4)² (1) (2)²
=> 128 = A (16 x 1 x 4)
=> 128 = 64A
=> A = 2
Now, the polynomial function is written as,
=> f(x) = 2 (x + 4)² (x + 1) (x + 2)²
When we expand this one then we get,
=> f(x) =2 [x⁵ + 13x⁴ + 64x³ + 148x² + 160x + 64]
Therefore, the resulting polynomial function is,
=> f(x) = 2x⁵ + 26x⁴ + 128x³ + 296x² + 320x + 128
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Find the percent increase from 50 to 54.
Answer the following questions for the function, please see attached picture
Answer:
concave down: ( negative infinity, 0)
concave up: (0, positive infinity)
minimum: x = 4
maximum: x=-6
Step-by-step explanation:
if ally worked 20.56 hours , and makes $10 an hour . how much is pay check? show work.
Answer:
$205.6
Step-by-step explanation:
20.56hours × $10/hour = $205.6
Determine which set of side measurements could be used to form a right triangle.
square root of 18, square root of 32, 50
square root of 14, 6, square root of 50
4, 8, 20
4, 5, 6
The set of side measurements that could be used to form a right triangle is
square root of 14, 6, square root of 50How to determine the side measurements that could be used to form a right triangleThis gotten by Pythagoras theorem, with the formula stated as
hypotenuse² = opposite² + adjacent²
plugging the values as in the problem
50² = (√18)² + (√32)²
50² = 18 + 32
50² = 50 - incorrect
(√50)² = 6² + (√14)²
50 = 36 + 14
50 = 50 - correct
20² = 8² + 4²
400 = 64 + 16
400 = 80 - incorrect
6² = 5² + 4²
36 = 25 + 16
36 = 41 - incorrect
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At a livestock market, one customer purchased 4 sheep and 2 cows for a total of $1660. Another customer purchased 3 sheep and 5 cows for a total of $2925. Create a system of equations and solve it with substitution or elimination, and find the price of a sheep, and the price of a cow.
Answer:
[tex]s \approx \$182.14[/tex]
[tex]c \approx \$435.72[/tex]
Step-by-step explanation:
Set up a system of equations, where s is the cost of a sheep and c is the cost of a cow:
[tex]4s + 2c = \$ 1660[/tex], [tex]3s + 5c = \$ 2925[/tex]
First, isolate c in the first equation.
[tex]4s + 2c = \$ 1660[/tex]
[tex]2c = \$ 1660 - 4s[/tex]
[tex]c = \$ 840 - 2s[/tex]
Next, substitute this value into the second equation:
[tex]3s + 5c = \$2925[/tex]
[tex]3s + 5(\$840 - 2s) = \$2925[/tex]
and simplify.
[tex]3s + \$4200 - 10s = \$2925[/tex]
[tex]-7s = -\$1275[/tex]
[tex]7s = \$1275[/tex]
[tex]s \approx \$182.14[/tex]
Finally, plug this value into the first equation to get the value of c:
[tex]4(\$182.14) + 2c = \$1660[/tex]
[tex]2c = \$1600 - \$728.57[/tex]
[tex]c \approx \$435.72[/tex]
So, a sheep costs about $184.14, and a cow costs about $435.72.
What are the zeros of the function f(x)=x²-x² - 2?
O +3, ti
O +2, ti
O +√2 ti
O+√3, ti
The zeros of the function f(x) = x⁴− x² − 2 are ±√2 or x = ±i option third positive or negative square root of 2, ±i is correct.
What is a complex number?
It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.
We have a function:
f(x) = x⁴− x² − 2
Assume u = x²
f(x) = u² - u - 2
(u + 1)(u - 2)
(x² + 1)(x² - 2)
x² = -1
x = √1
x² = 2
x = √2
x = ±√2 or x² = -1 ⇒ x = ±i
Thus, the zeros of the function f(x) = x⁴− x² − 2 are ±√2 or x = ±i option third positive or negative square root of 2, ±i is correct.
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A college football game is played to a sell-out crowd of 20,500 people. Student tickets are $7 while general admission tickets are $12. A
total of $176,000 was collected from ticket sales. How many people purchased student tickets? How many people purchased general
admission tickets?
people purchased student tickets and people purchased general admission tickets.
14000 student tickets and 6500 general admission tickets were purchased during the football game
How to solve an equation?An equation is an expression that can be used to show the relationship between variables and numbers.
Let x represent the amount of students tickets and y represent the amount of general admission tickets.
A total of $176,000 was collected from ticket sales. Hence:
7x + 12y = 176000 (1)
A college football game is played to a sell-out crowd of 20,500 people. Hence:
x + y = 20500 (2)
From the two equations:
x = 14000, y = 6500
14000 student tickets and 6500 general admission tickets
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the product of two and a number, divided by five 5
The expression of the given statement is [tex]\frac{2x}{5}[/tex] .
What is algebraic expression?
When terms are combined using operations like addition, subtraction, multiplication, division, etc., the result is an algebraic expression (or variable expression). Let's look at the formula 5x + 7 as an illustration. Consequently, we can state that 5x + 7 is an illustration of an algebraic statement. Here are some more examples: 5x + 4y + 10
Here the given product of two and a number. Lets us take number as x. Then ,
=> 2*x= 2x
Product of two and a number divided by 5. Then,
=> [tex]\frac{2x}{5}[/tex]
Hence the algebraic expression of the given statement is [tex]\frac{2x}{5}[/tex] .
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1. Mark is going to a carnival. He is anxiously looking forward to riding as many rides as possible. In order to enter the park each person is charged a $3 admission fee. The tickets for the rides are $0.75 each.
Match the following number of rides (x) and the total cost with admission (y) for Mark's trip to the carnival for 0 to 4 rides.
1 --> $3.00
2 --> $4.50
4 --> $3.75
3 --> $6.00
0 --> $5. 25
2. Write an equation that describes the relationship between the number of rides (x) and the total cost (y).
3. Use your equation from question #2, to determine the cost of 100 tickets.
4. If Mark's grandmother gave him $50, how many rides could be ridden? (no decimals)
Answer: hi
Step-by-step explanation:
this is it
Peter plans to start his own business selling T-shirts each T-shirt costs him $2.50 to make he plans on selling each T-shirt for $14.50 What percent does Peter plan to mark up his shirts?
Peter plans to 480 percent increase for his shirts.
According to the question,
We have the following information:
Peter plans to start his own business selling T-shirts. Each T-shirt costs him $2.50 to make. He plans on selling each T-shirt for $14.50.
We know that the following formula is used to find the percent increase when the final price and initial price is given:
Percent increase = 100*(final-initial)/initial
(More to know: the same formula can be used to find the percent decrease for a product.)
Percent increase = 100*(14.50-2.50)/2.50
Percent increase = 100(12)/2.50
Percent increase = 480%
Hence, Peter plans 480% of increase for his shirts.
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Use the graph of y=h'(x) below, to estimate point(s) of inflection for the function h(x) , as
well as the intervals on which h(x) is concave up and concave down. Explain your reasoning.
Answer:
At x = 0 and at x = 2 there are points of inflections. In the intervals of
(negative infinity, 0) and (2, positive infinity) it is concave up.
In the intervals of (0, 2) it is concave down.
Step-by-step explanation:
Inflection points are point where h'(x) changes from increasing to decreasing and vise versa.
When a graph is concave up, h'(x) is increasing.
When a graph is concave down, h'(x) is decreasing.
Solve the equation for V.
P = IV
Enter the value that belongs in the
green box.
V
v = 8
The value of of V in the equation is P / I.
How to make a variable the subject of the formula?The equation given is P = IV and we were asked to solve for V. This means we should make V the subject of the formula in the equation.
The subject of a formula is the variable which is expressed in terms of the other variables.
Therefore, we have to express V in terms of other variables.
Hence,
P = IV
divide both sides by I
[tex]\frac{P}{I} = \frac{IV}{I}[/tex]
Hence,
V = p / I
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can someone help with this
Answer:
z=38
Step-by-step explanation:
Using the fact that angles on a straight line add to 180°, the interior angles of the triangle are 86°, (180-3z)°, and (180-4z)°.
Angles in a triangle add to 180°, so:
[tex]86+180-3z+180-4z=180 \\ \\ 86-3z+180-4z=0 \\ \\ 266-7z=0 \\ \\ 7z=266 \\ \\ z=38[/tex]
Area of a Circle Ji-Min needs to replace a circular window having a diameter of 5 ft. She decides to use double strength glass costing $ 3 per square foot. Find the total cost for the glass.
Ji-Min will spend a total of $235.62 to fence or cover the area of the circular window.
Area of a CircleWhat is the area of the a circle?
The area of circle is equal to pi times square of its radius, i.e. πr². To find the area of circle we have to know the radius or diameter of the circle.
Let's find the area of the circle first;
radius = diameter / 2
radius = 5 / 2
radius = 2.5ft
The area of the circle is;
A = πr²
A = π * 5²
A = 25π
A = 78.54ft²
For every square foot, the glass cost $3, this implies that 3 * 78.54 will be the total cost to cover the window.
cost = 3 * 78.54 = $235.62
She will spend $235.62 to fence the window
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If she decides to use double strength glass costing $ 3 per square foot. the total cost for the glass is $58.88.
How to find the total cost?Given data:
Diameter = 5ft
Glass costing = $3 per square foot
Hence,
Let the radius be 5/2 feet
Area = π × (5/2)²
Area = 25π /4 ft²
So,
Total cost = ( π × 25 /4 × $3)
Total cost = $58.875
Total cost = $58.88
Therefore $58.88 is the total cost.
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Solve the problem below
Answer:
f(-2) = 2
Step-by-step explanation:
-2 is the input/ domain value
It's corresponding value from the graph is 2.
Please help I was sick and missed out on class.Thank you
Answer:
slope = (1/3)
Step-by-step explanation:
(-8, 2), (-11, 3)
(x₁, y₁) (x₂, y₂)
m = slope
y₂ - y₁ 3 - 2 1 1
m = ------------ = -------------- = ----------- = -------
x₂ - x₁ -11 - (-8) -11 + 8 3
I hope this helps!
Last week, Lisa sold 20 hand-engraved watch bands, earning a total profit of $105.00. She plans to make 50 engraved watch bands to sell at the community art fair. If she sells all 50 watch bands, how much profit can Lisa expect to earn?
$
Answer:
$262.50
Step-by-step explanation:
20 : 105 = 50 : x
x = (50 * 105)/20
x = (5 * 105)/2
x = 525/2
x = 262.50
Answer: $262.50
Step-by-step explanation:
What I did was divide the $105 by 20 and got $5.25. I then multiplied $5.25 by 50 since that's how many she's going to sell and got $262.50.
Jessica found that the perimeter of her kitchen table was 18 feet she found the area of her kitchen table to be 18 ft.² what are the links and width of Jessica‘s kitchen table 
The length and width of Jessica's kitchen table are 6 ft and 3 ft or 3ft and 6 ft.
According to the question,
We have the following information:
Jessica found that the perimeter of her kitchen table was 18 feet she found the area of her kitchen table to be 18 ft.²
Now, let's take the length of the table to x ft and the width of the table to be y ft.
So, we know that following formulas are used to find the perimeter and area of rectangle:
Perimeter = 2(length+width)
2(x+y) = 18 ...(1)
Area = length*width
xy = 18
x = 18/y
Putting this value of x in equation 1:
2(18/y+y) = 18
18/y + y = 9
([tex]y^{2}[/tex]+18) = 9y
[tex]y^{2}[/tex]-9y+18 = 0
[tex]y^{2}[/tex]-6y-3y+18 = 0
y(y-6)-3(y-6) = 0
(y-6)(y-3) = 0
y-6 = 0 and y-3 = 0
y = 6 ft and y = 3 ft
Now, putting this value of y in x = 18/y:
x = 18/6
x = 3 ft
x = 18/3
x = 6 ft
Hence, the length and width of Jessica's kitchen table are 6 ft and 3 ft or 3ft and 6 ft.
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Triangle ABC is shown with exterior ∠z.
triangle ABC with angle A labeled 97 degrees, angle B labeled 34 degrees, and side AC extended with angle z labeled as exterior angle to angle C
Determine m∠z.
49°
97°
131°
146°
The value of angle z in the triangle illustrated is C. 131°.
What is the value of angle z?It should be noted that the value of the total angles in a triangle is 180°. In this case, the other two angles are given as 97° and 34°.
The other angle will be:
= 180° - (97° + 34°)
= 180° - 131°
= 49°
Therefore, the value of the angle z will be:
= 180° - 49° (angle on a straight line)
= 131°
Therefore, the correct option is C.
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Answer: C 131
Step-by-step explanation:
An assistant is in charge of ordering lunch for the monthly office meeting. For the first month, she orders five Falafel wraps, fifteen Turkey BLT sandwiches, and twenty hot Ham and Swiss paninis for a total of $260. The next month, she orders eight Falafel wraps, eighteen Turkey BLT sandwiches, and 14 hot Ham and Swiss paninis for a total of $263. For the third month, she orders twelve Falafel wraps, 16 Turkey BLT sandwiches, and twelve hot Ham and Swiss paninis for a total of $258. How much does each sandwich cost?
The cost of Falafel wraps is $5.5, the cost of Turkey BLT sandwiches is $7.5, and the cost of hot Ham and Swiss paninis is $6.
How much does each sandwich cost?In order to determine the cost of each sandwich, we would assign variables to the cost of sandwiches ordered, and then translate the word problem into algebraic expression as follows:
Let the variable f represent the cost of Falafel wraps.Let the variable t represent the cost of Turkey BLT sandwiches. Let the variable h represent the cost of hot Ham and Swiss paninis.Therefore, translating the word problem into an algebraic expression, we have the following;
For the first month ⇒ 5f + 15t + 20h = 260 ......equation 1.
The next month ⇒ 8f + 18t + 14h = 263 ......equation 2.
For the third month ⇒ 12f + 16t + 12h = 258 ......equation 3.
Next, we would solve the system of algebraic expressions simultaneously.
Multiplying equation 1 by 12/5 and subtracting it from equation 3, we have:
6.25t - 24h = -366 ......equation 4.
Multiplying equation 2 by 5/8 and subtracting it from equation 1, we have:
3.75t + 11.25h = 95.625 ......equation 5.
Solving equation 4 and equation 5, we have:
Falafel wraps, f = $5.5
Turkey BLT sandwiches, t = $7.5
Hot Ham and Swiss paninis, h = $6.
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find the slope of (-4,4) (0,0)
The slope for the following question is = 4.
What is slope?Slope is used to describe the steepness of a line. The definition of slope is the rise of a line over the run of a line, or the change in the vertical direction (y) over the change in the horizontal direction (x). When one thinks of skiing down a hill or climbing up a mountain, the angle at which they are descending or ascending is the slope. Sometimes the slope can be fairly flat or very steep depending on what it is.The slope of an object indicates how steep it is. Slope knowledge is crucial for daily decision-making. For instance, understanding a roof's slope enables builders to determine whether specific construction materials are required for shingling projects. Since there must be sufficient grade for water to pass through the tile, slope is crucial in agriculture when tiling a field. Slope can also be calculated using elevation points on a GIS, a type of digital map that can highlight areas with sharp elevation changes in the ground.acc to our question-
the two y's are 0 and 4 so its 0-4then the two x's are0 and one so its 0-10-4/0-1 is -4/-1 which when simplified the negatives cancel out leaving you with a positive 4hence the value of slope=4
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The following inequalities represent a system.
y ≥ −5x + 2
y > 3x − 1.5
Which of the following graphs represents the system?
The graph shows a solid line that passes through 0 comma 2 and 1 comma negative 3, with shading above the line. There is also a dashed line that passes through 0 comma negative 1.5 and 1 comma 1.5, with shading above the line.
The graph shows a solid line that passes through 0 comma 2 and 1 comma negative 3, with shading below the line. There is also a dashed line that passes through 0 comma negative 1.5 and 1 comma 1.5, with shading above the line.
The graph shows a solid line that passes through 0 comma 2 and 1 comma negative 3, with shading above the line. There is also a dashed line that passes through 0 comma negative 1.5 and 1 comma 1.5, with shading below the line.
The graph shows a solid line that passes through 0 comma 2 and 1 comma negative 3, with shading below the line. There is also a dashed line that passes through 0 comma negative 1.5 and 1 comma 1.5, with shading below the line.
A graph which represents the system of inequalities is: B. The graph shows a solid line that passes through 0 comma 2 and 1 comma negative 3, with shading below the line. There is also a dashed line that passes through 0 comma negative 1.5 and 1 comma 1.5, with shading above the line.
What is a graph?In Mathematics, a graph can be defined as a type of chart that is typically used for the graphical representation of data points or ordered pairs on both the horizontal and vertical lines of a cartesian coordinate, which are the x-axis and y-axis respectively.
The rules for writing an inequality.In Mathematics, there are two (2) main rules that are generally used for writing and interpreting an inequality plotted on a graph and these include the following:
The line on a graph should be a solid line when the inequality symbol is (≥ or ≤).The line on a graph should be a dashed (dotted) line when the inequality symbol is (> or <).Additionally, the y-value for this inequality graph intersects the x-axis at -1.5 and the boundary line is dashed (dotted) and shaded above to indicate that the boundary is not part of the solution, and this must be represented with the greater than (>) inequality symbol.
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A. x² +5
B. +5X
C.X + 5
D.5X
The expression that represents the quotient of given model is x + 5
The correct answer is an option (C)
In this question, we have been given a synthetic division of x^2 + 5x and x
We need to find the quotient.
x + 1 + 1 + 1 + 1 + 1
x) x^2 x x x x x
- x^2
0 x
- x
0 x
- x
0 x
- x
0 x
- x
0 x
- x
0
Therefore, the expression that represents the quotient of given model is x + 5
The correct answer is an option (C)
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QUESTION 1 1 POINT
Jason bought new shoes priced at $75 and sales tax is 6%. What is the total cost of the shoes after-tax?
Provide your answer below:
The total cost of the shoe after tax is $79.50
Calculating total cost after sales taxFrom the question, we are to determine the total cost of the shoes after tax.
From the given information,
Jason bought new shoes priced at $75
and
The sales tax is 6%
The total cost of the shoe = Price of the shoe + Sales tax
Sales tax = 6% of $75
Sales tax = 0.06 × $75
Sales tax = $4.50
Thus,
Total cost of the shoe = $75 + $4.50
Total cost of the shoe = $79.50
Hence, the total cost is $79.50
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6. Use words and numbers to explain how the number 0.4 can mean 40/100 and 4/10 at the same time
Answer:They are all the same because 40/100 divided by 10 on both sides is just 4/10 and 4/10 as a decimal is equal to 0.4
Step-by-step explanation:
Answer:
0.4 is the decimal form of [tex]\frac{4}{10}[/tex], which means that 4 ÷ 10 = 0.4, shown below.
If you multiply the numerator and denominator of [tex]\frac{4}{10}[/tex] by 10, you would get [tex]\frac{4*10}{10*10} =\frac{40}{100}[/tex]. This is equal in value to [tex]\frac{4}{10}[/tex] because 40 ÷ 100 = 0.4.
cannot decide which of two washing machines to buy. The selling price of each is $550. The first is marked down by 40%. The second is marked down by 30% with an additional 10% off. Find the sale price of each washing machine. Use pencil and paper. Explain why should buy the first washing machine rather than the second if the machines are the same except for the selling price.
The selling price of the two washing machies are
first washing machine is $330second washing machine is $346.5I will buy the first because it has a lower selling price
How to determine the best washing machine to buyThe question is a percentage problem
The first washing machine has a mark down by 40%
= 40 percent
= 40 / 100
= 0.4
marked down factor = 1 - 0.4 = 0.6
selling price of the first machine = 550 * 0.6 = 330
the second washing machine has mark down of 30%
30% = 0.3
marked down factor = 1 - 0.3 = 0.7
selling price of the second washing machine at first mark down
= 550 * 0.7 = 385
marked down again
10% = 0.1
the factor here is = 1 - 0.1 = 0.9
selling price of the second washing machine at second mark down
= 385 * 0.9 = 346.5
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Justin is designing a drink container in the shape of a rectangular prism.
The container must be made out of 254 cm² of plastic.
Will the container be large enough to hold 1 cup of liquid? Justify your answer.
(1 cup = 236 cm³)
The container is large enough to hold 1 cup of liquid.
Will the container be large enough?From the information, Justin is designing a drink container in the shape of a rectangular prism and the container must be made out of 254 cm² of plastic.
In this case, since 1 cup = 236cm², it can be seen that 254cm² is more than 236cm².
Therefore, the container is large enough.
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