Simplify:
a+b
a-b
[?]
a=5 and b=3

Answer:

snap to solve

Step-by-step explanation:

u can use snap to solve to get ur answers

Answer:

Step-by-step explanation:

cost price = $640

sell price = $940

percentage = ?

Rate * Base = Amount

Percent * Sell Price = Cost Price

P * 940 = 640

P940 = 640

P940/940 = 640/ 940

P = 0.66666667

Percent = (0.66666667 × 100)/100 = 66.666667

Correct Answer is 66 2/3%

Answer:

13.5

Step-by-step explanation: that's the minimum of dimensions for the box

The length of the line is 10ft  

Pythagorean theorem, the well-known geometric theorem that the sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse in familiar algebraic notation, a2 + b2 = c2

Given that A kite is flying 8 ft off the ground. Its line is pulled taut and casts a 6-ft shadow

We have to find a third side

By using Pythagoras' theorem. a^2+b^2=c^2

8^2+6^2=c^2

64 +36 = c^2

c^2= 100

c^2= 10

Therefore the length of the line is 10ft

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Respuesta:

5 millas

Explicación paso a paso:

Si hay 2 personas y cuesta 12 dólares primero restarás 2 dolars por cada persona dejándote con 10 dólares. Después de eso, dividirá 10 por 2 para las millas porque cada milla cuesta 2 dólares. que te llevará a 5 millas

GRACIAS

Answer:

13685

Step-by-step explanation:

8050 + .7(8050)

8050 + 5635

13685

Answer:

p = 5.8

Step-by-step explanation:

12 = p + 6.2  Subtract 6.2 from both sides.  Ling subtracted 6.2 from the right, but added it to the left side.

5.8 = p

The value of a and b in the function  f(x) = √ x+2 and g(x) = ax + b , is a = 0 and b = 2  .

In the question ,

it is given that ,

the function f(x) = √(x+2) and the function g(x) = ax + b

also given that

fog(1) = 2

f(g(1)) = 2

f(a + b) = 2         .... because g(1) = a + b

√(a + b +2) = 2

Squaring both the sides

a + b + 2 = 4

a + b = 2      .......(1)

also given that

g(-1) = 2

a(-1) + b = 2

-a + b = 2         .....(2)

Adding equation (1) and (2) , we get

2b = 4

b = 2

Substituting b = 2 in the a + b = 2 , we get

a + 2 = 2

a = 2 - 2

a = 0

Therefore , The value of a and b in the function  f(x) = √ x+2 and g(x) = ax + b , is a = 0 and b = 2  .

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Answer:

x> 2

Step-by-step explanation:

18< 9x  Divide both sides by 9

2<x  or x > 2  All the numbers greater than 2 is a solution.

Answer:

191=266+109x

Step-by-step explanation:

It says 191 is the same as 266 added to the product of 109 and _____. i am guessing you meant to say a variable.

Answer:

Only Julia's Question.

Step-by-step explanation:

Julia: 8÷[tex]\frac{1}{4}[/tex]

Tanveer: 8*1/4

The number of ways the digits of the given number can be arranged would be = 5,040

Factorials are mathematical expressions that are used to show the number of ways a variable can be arranged in a data set.

The number of digits found in the number 7,550,000 = 7

The number of ways the digits can be arranged would be the factorials of 7 (7!) ;

= 7×6×5×4×3×2×1

= 5,040

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The solution to this inequality in interval notation is {-∞, -3} and it goes to the left on the number line.

In Mathematics, an inequality can be defined as a mathematical relation that is typically used for comparing two (2) or more numerical data such as integers, and variables in an equation based on any of the following inequality symbols:

From the information provided, we have the following inequality:

4.2y ≤ -12.6

Dividing both sides of the inequality by 4.2, we have the following:

y ≤ -12.6/4.2

y ≤ -3

In conclusion, a solution to this inequality is equal to {-∞, -3} as shown in the number line (graph) attached below.

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The slope of the line shown in the graph is 4.5 .

In the question ,

it is given that ,

the amount of grapes is represented on x axis . and

the cost for that grape in the grocery store is represented on y axis .

to find the slope we need two points on the line ,

from the graph we can take two points as (1 , 4.5) and (2 , 9) ,

the slope can be calculated using the formula

slope = (change in y coordinate)/(change in x coordinate)

slope = (9 - 4.5)/(2 - 1)

slope = 4.5/1

slope = 4.5 .

Therefore , The slope of the line shown in the graph is 4.5 .

The given question is incomplete , the complete question is

The graph below shows the cost of grapes at a grocery store. What is the slope of the line?

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[tex]a=\frac{6}{5}[/tex].

[tex]a+\frac{4}{5} =\frac{1}{\frac{1}{2} }[/tex]

[tex]a+\frac{4}{5} =1*\frac{2}{1} \\ \\a+\frac{4}{5} =2[/tex]

[tex]a+\frac{4}{5}-\frac{4}{5} =2-\frac{4}{5}\\ \\a=\frac{2}{1}-\frac{4}{5}\\\\a=\frac{2*5}{1*5}-\frac{4}{5}\\ \\a=\frac{10}{5}-\frac{4}{5}\\ \\a=\frac{10-4}{5} \\ \\a=\frac{6}{5}[/tex]

[tex](\frac{6}{5} )+\frac{4}{5} =\frac{1}{\frac{1}{2} }\\ \\\frac{10}{5} =2\\ \\2=2[/tex]

[tex]a=\frac{6}{5}[/tex].

The solution of the given system of equations is (-1, -2).

We are aware that a linear system of equations can be solved using a substitution method.

The intersection of the two lines represents the system's solution.

The given equations are-

y = 3x+1 ...eq 1

y = -2x-4  ...eq 2

Put the value of eq 1 in eq2 .

3x+1  = -2x-4

3x + 2x = -4 - 1

5x = -5

x = -5/5

x = -1

Put the x in eq 1.

y = 3(-1)+1

y = -2

Thus, the solution of the given system of equations is (-1, -2).

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The complete question is-

What is the solution to the system of equations-

y=3x+1 ;

y=-2x-4

1. An equation representing the number of days Amir has been reading and the number of pages he has read is y = 35x.

2. An equation representing the number of days Jesse has been reading and the number of pages she has read is y = 30 + 30x.

3. The system of equations from 1 and 2 is y = 35x and y = 30 + 30x.

4. At the end of Friday, after solving the equations, both Jesse and Amir read 210 pages each, with Jesse spending 7 days and Amir 6 days.

5. For Jesse and Amir, the equation solutions are y is 210 pages and x is 6 days.

6. After solving the equations, it will take Amir 6 days to catch up with Jesse and each person must have read 210 pages or a total of 420 pages.

A system of equations involves using more than one equation solved simultaneously.

Jesse's reading rate per day = 30 pages

Amir's reading rate per day = 35 pages

The number of pages read by Jesse, y = 30 + 30x

The number of pages read by Amir, y = 35x

Where x = the number of days they have been reading

y = 30 + 30x and y = 35x

35x  = 30 + 30x

35x - 30x = 30

5x = 30

x = 6 (30/5)

y = 30 + 30x

y = 30 + 30(6)

y = 210

y = 35x

y = 35(6)

y = 210

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Answer:

I believe the answer is c

The percentage is the indicating hundredth is  12.5%.

A specific number in every hundred is what is meant by the percentage. It is a fraction with 100 as the denominator, and one percent is used to symbolize it.

Using the percentage formula, a number between 0 and 1 can be expressed. A number that is expressed as a fraction of 100 is what it is. It is mostly used to compare and determine ratios and is represented by the symbol %.

Given:

A student was marked tardy five different times in a 40-day period.

Percentage of 5 among 40

= (5/40) x 100

= 12.5%

Hence, The percentage of times the students marked will be 12.5%".

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Answer: 6

Step-by-step explanation:

Angles opposite congruent sides in a triangle are congruent, so both angles are equal to [tex](13x-6)^{\circ}[/tex].

Since angles in a triangle add to [tex]180^{\circ}[/tex], so:

[tex]36+2(13x-6)=180\\\\2(13x-6)=144\\\\13x-6=72\\\\13x=78\\\\x=6[/tex]

Answer:

1

Step-by-step explanation:

Replace the variable letter with the number.

t + d / 8 - 6

6 + 8 / 8 - 6

6 + 1 - 6

7 - 6

1

Answer:

slope is m=1

Step-by-step explanation:

Answer: 1

Step-by-step explanation: use the slope formula to find the slope m

(16, 36)  is the image point .

What is  image point?

Reflecting (-6, -4) in the line y= - x yields the point (4, 6).

Dilating (4, 6) by a factor of 4 gives the point (16, 36).

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Answer:

Step-by-step explanation:

Perimeter formula from Area =

4√Area units.

4√250 =

4 × 15.8 =

63.2 cm

Answer:

C

Step-by-step explanation:

4(n-5)<3(n+11)

4n-20<3n+33

4n-3n<33+20

n<53

n is not 53 but less than 53.

Answer:

y + 4 = -(x - 8)

Step-by-step explanation:

The point-slope form equation is y - y1 = m(x - x1)

Since we're given m and since they use the 4 from (8, -4) as y - (-4) = y+4, we simply need to plug in 8 into the RHS of the equation and you can check the math.

If you substitute 8 and -4 for y and x, you have:

-4 + 4 = -1(8 - 8)

0 = -1 * 0

0 = 0

You'd get -2 on both sides if you used -6 and 10, but having an equal equation means our math is true/accurate.

The sample statistic when the nursing administrator went through a sample of hospital records is 217.

A statistic is a metric used to describe a sample. Estimation or hypothesis testing can be used to determine how likely it is that a sample statistic differs from the population parameter.

A sample is an analytic subset of a larger population in statistics. The use of samples enables researchers to conduct studies with more manageable data and more quickly. Randomly drawn samples have little bias if they are large enough, but obtaining such a sample can be costly and time-consuming.

A sample statistic is a piece of statistical data derived from a small number of items. A sample is merely a subset of a population. Therefore, the 217 of the patients had been admitted for heart issues is the sample.

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Answer:

An equation is a proposition of two expressions that are equal.

Step-by-step explanation:

The option that is the graph of (g – f)(x) is; On a coordinate plane, a straight line with a positive slope goes through points (negative 2, negative 6), (0, 0), and (2, 6).

We are given the function as;

f(x) = -x

Now, the line passes through the points (0,0),(-6,6) and (6,-6) is;

The function given as; g(x) = 2x

This line passes through the points (-3,-6),(0,0) and (3,6).

Before we graph (g - f)(x), we have to first simplify it to get;

The graph of of (g - f)(x)

(g - f)(x) = g(x) - f(x)

= 2x - (-x)

= 3x

At x = 0, we have;

(g - f)(0) = 3(0) = 0

At x = 2, we have;

(g - f)(2) = 3(2) = 6

At x = -2, we have;

(g - f)(-2) = 3(-2) = -6

At x = -6, we have;

(g - f)(-6) = 3(-6) = -18

Looking at the options, option C is true

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Answer: 24.5

Step-by-step explanation: 3.5 x 7 = 24.5

Answer: 24.5 ounces

Step-by-step explanation:

3.5 times 7 = 24.5 ounces

If you have trouble try

3.5 + 3.5 + 3.5 + 3.5 + 3.5 + 3.5 + 3.5