The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of equations that represents this problem. What is the area of the rectangle​

Answers

Answer 1

Step-by-step explanation:

2×length + 2×width = 45

length = 4×width

now, we are using the second equation (a variable identity) in the first equation

2×4×width + 2×width = 45

8×width + 2×width = 45

10×width = 45

width = 45/10 = 4.5 in

length = 4×width = 4×4.5 = 18 in

the area of the rectangle is

length × width = 18 × 4.5 = 81 in²


Related Questions

What must be a factor of the polynomial function f(x) graphed on the coordinate plane below? on a coordinate plane, a parabola opens up. it goes through (0, 3), has a vertex at (3.5, 3), and goes through (6, 0). x – 3 x – 1 x 1 x 3

Answers

The factor of the polynomial function f(x) graphed on the coordinate plane below is x - 1 , Option B is the right answer.

What is a Polynomial Function ?

A function in which there is only positive exponents to the variables are called polynomial function.

The missing image is attached with the answer.

It is given in the question

on a coordinate plane, a parabola opens up. it goes through (0, 3), has a vertex at (3.5, 3), and goes through (6, 0)

The zeroes of the polynomial function are the points at which the curve will cut x axis

For the given graph,

the curve cuts the x-axis at x = 1 and x = 6

the  factors will be x - 1 and x - 6

Therefore, a factor of the polynomial function f(x) graphed on the coordinate plane below is x - 1 , Option B is the right answer.

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Answer:

B

Step-by-step explanation:

B

Which of the following can be used to find the sum of the interior angles for
any regular polygon?
A. Multiply the number of sides by 180
B. Add 1 to the number of sides and multiply the sum by 180
OC. Divide the number of sides by 180
D. Subtract 2 from the number of sides and multiply the difference by
180

Answers

D. Subtract 2 from the number of sides and multiply the difference by 180

4/9 of students at a school are boys. If there are 2322 students at the school, how many are girls?

Answers

1290 girls

If number of boys is 4/9 then number of girls must be 5/9 (of course this is assuming there are no non-binary people). Then just multiple 5/9 * 2322 and you get 1290 girls

One force of 700 pounds and one force of 490 pounds act on a body at the same point so that the resultant force is 1120 pounds. find the angle between the resultant and the smaller force, to the nearest degree.

Answers

Answer:

angle 700 < angle 1120 pounds

A company provides snack-sized packages of nuts for its office employees.
employees can choose from among five kinds of nuts. which probabilities
correctly complete this probability distribution for 50 packages of nuts, in the
order listed?
nuts
almonds cashews mixed peanuts pecans
12
10
6
14
8
number of
packages
probability
a. probability 0.32 0.24 0.14 0.2 0.1

Answers

The probabilities that correctly complete this probability distribution for 50 packages of nuts will be 0.24, 0.2, 0.12, 0.28, and 0.16.

How to calculate the probability?

From the information given, we have to find the probability for each fruit. This will be:

Almond = 12/50 = 0.24

Cashew = 10/50 = 0.2

Mixed = 6/50 = 0.12

Peanut = 14/50 = 0.28

Pecan = 8/50 = 0.16

Therefore, the probabilities that correctly complete this probability distribution for 50 packages of nuts will be 0.24, 0.2, 0.12, 0.28, and 0.16.

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The cost to rent an rv is $150 per day plus $0.35 per mile. what is the maximum distance you can drive the rv in a day if your budget is $200?

Answers

Answer:

142.86 miles

Step-by-step explanation:

150 + .35m < 200

150 + .35m -150 < 200-150

.35m < 50

.35m/35 < 50/.35

m < 142.86

The maximum distance I can drive the rv in a day if my budget $200 is, approx. 142 miles

What are inequalities?

Inequalities are the comparison of mathematical expressions, whether one quantity is greater or smaller in comparison to another quantity.

We use these symbols to represent inequalities, '>' , '<', '≥', '≤'

Given that,

The cost to rent an rv is $150 per day +  $0.35 per mile

The maximum distance in a day = ?

Budget is $200

So,

The maximum distance in a day ≤ 200

The maximum distance in a day = 150 + 0.35x

Now,

⇒  150 + 0.35x  ≤ 200

⇒   0.35x  ≤ 200 - 150

⇒      x ≤ 142.85

Hence, maximum distance in a day is approx. 142 miles

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A volcanic eruption ejects about 43,600,000,000 cubic feet of volcanic rock. A smaller volcanic eruption ejects about 75% of this amount. What is the approximate amount of volcanic rock that the smaller volcanic eruption ejects? Write the result as a product of a single digit and a power of 10.

Answers

Answer:

3 × 10^10

Step-by-step explanation:

43,600,000,000 × 75% = 0.75 × 43,600,000,000 = 32,700,000,000 =

= 3.27 × 10^10

Answer: 3 × 10^10

What is the length of HI? (Giving 40 points please hurry!)​

Answers

The length of HI IS 3 since 9-6 is 3

Answer: Hope this helps you!

3

Step-by-step explanation:

9 (total amount) - 6 (1 part of it) = 3 (the other part of it)

Brainliest?

Mi papa es el gerente de una empresa donde se fabrican 20 televisores de cada una de las siguientes medidad 20 26 32 37 y 40 pulgadas para el aniversario de la empresa rifaran entre sus 10 empleados dos televisores de 36 pulgadas y uno de 32 pulgadas

1- que probabilidad hay de que en la rifa obtengan una de 40 pulgadas?
2-Que probabilidad hay de que un empleado obtenga una television en la rifa
3-que cantidad de televisores maquila cada empleado

Answers

De acuerdo a la información, se puede inferir que la probabilidad de cada empleado para ganarse un televisor es de 0.3. Por otra parte, la cantidad de televisores que maquilla cada empleado es 2.

¿Cómo calcular la probabilidad de cada empleado de ganarse un televisor?

Para calcular la probabilidad de cada empleado de ganarse un televisor utilizamos la siguiente formula:

P (probabilidad) = (casos favorables)/(casos posibles).

De acuerdo a la formula, solo tenemos que remplazar los valores, el número de casos favorables es 3 debido a que hay 3 televisores en total el sorteo, y el número de casos posibles, es 10 debido a que 10 empleados están participando en la rifa, como se muestra a continuación:

P = 3 ÷ 10P = 0.3

¿Cómo calcular cuántos televisores maquilla cada empleado?

Para calcular cuántos televisores maquilla cada empleado debemos tener en cuenta que la empresa produce 20 televisores y que tiene 10 empleados. Entonces tenemos que dividir el numero de televisores en el número de empleados como se muestra a continuación:

20 ÷ 10 = 2

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What is the lowest common denominator of the following set of fractions:1/6, 13/27, 4/5, 3/10, 2/5?

Answers

The lowest common denominator of the set of fractions 1/6, 13/27, 4/5, 3/10, 2/5 is 270.

What is lowest common denominator?

The lowest common denominator of LCD is least common multiple of denominators of the fractions.

given fractions:

1/6, 13/27, 4/5, 3/10, 2/5

taking the Prime factorization of denominator of the fractions

6 = 2x3x1

27 = 3x3x3x1

5 = 5x1

10 = 2x5x1

5 = 5x1

Therefore, lcm is 2x3x3x3x5 = 270

so, LCD is 270

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Let f(x)=(18)3^x. find the equation of the line between the points (-2,f(-2)) and (1,f(1))

Answers

[tex]\text{Given that,} \\\\f(x) = 18 \cdot 3^x \\\\f(-2) = 18 \cdot 3^{-2} = 2\\\\f(1) = 18 \cdot 3^1 = 54\\ \\\text{So,}~ (x_1,y_1) = (x_1, f(-2)) = (-2,2) ~\text{and}~ (x_2,y_2) = (x_2, f(1)) = (1,54)\\ \\\text{Slope,}~ m = \dfrac{y_2 -y_1}{x_2 -x_1} = \dfrac{54-2}{1+2} = \dfrac{52}3 \\\\[/tex]

[tex]\text{Equation of line,}\\\\~~~~~~~y - y_1 = m (x-x_1)\\\\\\\implies y-2 = \dfrac{52}3(x+2)~~~~~~~~~~~;[\text{Point-Slope form.]} \\\\\\\implies y-2 = \dfrac{52}3x + \dfrac{104}3\\\\\\\implies y = \dfrac{52}{3}x + \dfrac{104} 3 +2\\\\\\\implies y = \dfrac{52}3 x +\dfrac{110}3 ~~~~~~~~~~~~~~~;[\text{Slope -Intercept form}][/tex]

find the radius of a circle with a circumference of 59 yards round your answer to the nearest hundredth of a yard

Answers

Answer:

9.39

Step-by-step explanation:

[tex]\frac{C}{2\pi } =R[/tex]

[tex]\frac{59}{6.28}[/tex]= 9.39

p and q are rational numbers which of the following expression cannot be used to find the distance between them on the number line

Answers

The expression that cannot be used to find the distance between them on the number line is |p + q|.

How to depict the infomation?

p and q are rational numbers. Which of the following expressions cannot be used to find the distance between them on the number line.

A. |p - q|

B. |p + q|

C. |q + (-p)|

D. |q - p|

Rational number is a number that can be represented as the quotient p/q of two integers such that q ≠ 0.

Here, the expression that cannot be used to find the distance between them on the number line is |p + q|.

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In a track field competition, A discus has a radius of 11 centimeters. What is the circumference, I centimeters, of the discus?

Answers

Given the radius of the discus used in the track field competition, the circumference of the discus is 69.08cm.

What is the circumference of the discus?

Note that; a circumference is the perimeter of a circle or ellipse.

It is expressed as C = 2πr

Where r is the radius and π is the constant pi ( π = 3.14 )

Given that;

Radius of the discus r = 11cmCircumference C = ?

C = 2πr

C = 2 × 3.14 × 11cm

C = 69.08cm

Therefore, given the radius of the discus used in the track field competition, the circumference of the discus is 69.08cm.

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What is the volume of the figure?
A. 188.5 units cubed
B. 196.9 units cubed
C. 205.3 units cubed
D. 213.6 units cubed

Answers

I got B. 196.9 units cubed.

what is 15/56 in simplest form

Answers

Answer:

15/56

Step-by-step explanation:

15 and 56 have a GCF of 1.

need answer asap!!!!!

how would i solve this?

Answers

The height of the building to the nearest tenth of a meter is; 13 m

How to make use of Cosine Rule?

The slant line from the top of Trevor's head to the base of the building is gotten from Pythagoras theorem;

15/x = sin 36°

x = 15/sin 36

x = 25.52 m

Angle between that slant line and base of building is;

90 - tan⁻¹(1.5/14) = θ

θ = 83.88°

Remaining angle of the bigger triangle is;

180 - (36 + 83.88) = 60.12°

Thus, if the height of the building is h, then;

h/sin 36 = 25.52/sin 60.12

h = 13 m

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Cara is a high school student. On average, there are 26 students per class at her school, with a standard deviation of 3 students. What percentage of classes at Cara's high school will have between 20 students and 35 students?

A. 0.15%
B. 97%
C. 99%
D. 0.3%

Answers

Answer:

B. 97%

Step-by-step explanation:

20 students is -2 standard deviations away from the mean

35 is +3 standard deviations away from the mean

100 - 2.4 = 97.6

(2.4 is amount of data we are not using)

please refer to the standard deviation graph attached :)

Solve the percent proportion. 7 is 35% of what number?

Answers

Answer:

35 ×x =7

100

35x=7

100

35x=700

35 35

x = 20.

HOPE IT HELPS,BRAINLIESTPLEASE

The diagonals of kite KITE intersect at point P. Which statement is true?
A. < KIE = B. C. D.

Answers

Based on the properties of a kite, the statement that is true is: D. KPE = TPE.

What is a Kite?

A kite is a quadrilateral in which its diagonals intersect at right angles.

Also, the non-vertex angles of a kite are congruent, that is they have equal measure.

Angle KPE and angle TPE in the given kite are right angles formed at the point of intersection of the two diagonals of the kite. They both equal 90 degrees.

Therefore, the true statement is:

D. KPE = TPE

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PLS HELPPPPP !!!! Figure ABCD is transformed to figure A'B'C'D':
B
A
5-4-3-2-10 1 2
1
-2
C
Which angle in Figure A'B'C'D' is equal to ZBCD?
OZD'A'B'
OZA'B'C'
ZB'C'D'
OZC'D'A'
54

Answers

Option b is the best answer

Solve |5x + 15| = 10x. Identify the solution and an extraneous solution.
A. Solution: x= 3; extraneous solution: x=-3
B. Solution: x= 3; extraneous solution: X=-1
c. Solution: x= 1; extraneous solution: X=-3
D. Solution: ×= -1; extraneous solution: X=3

Answers

If 5x + 15 ≥ 0, then |5x + 15| = 5x + 15. The equation reduces to

5x + 15 = 10x

15 = 5x

x = 3

If instead 5x + 15 < 0, then |5x + 15| = -(5x + 15), and the equation becomes

-5x - 15 = 10x

-15 = 15x

x = -1

If x = 3, then |5x + 15| = 30 and 10x = 30, so x = 3 is a valid solution.

If x = -1, then |5x + 15| = 10 while 10x = -10, so x = -1 is the extraneous solution.

While cooking a stew, Jim used 2/3 of a shaker of salt and 7/12 of a shaker of pepper. How
much more salt did Jim use?

Answers

Answer:

he used one 1/12 more of salt.

Step-by-step explanation:

2/3 I know equals 8/12

And

7/12 = 7/12 so

You just do

8/12 - 7/12 = 1/12

10, 5, 5/2 Find the 6th term.

Answers

Answer:

Hey there!

Arithmetic sequences are made up of terms that are added or subtracted, and geometric sequences are made up of terms that are multiplied or divided.

Given this info, we can see that we go from 10 to -5. Because we know that this is geometric, we see that we must divide by -2 in our sequence.

We can see that this is true because -5/-2=5/2.

Now, we could simply continue dividing by negative two to get our answer, which is -5/16.

You could easily do that with a calculator, but if you had to find a term that was farther from the first term, that would take forever to do with a calculator, so there is an equation that you can use and plug in your numbers to find the answer quickly.

, where  is the number of term in the sequence (6 in this problem), a is the first term of the sequence (10), and r is the common ratio (-1/2).

I hope this helps!

Step-by-step explanation:

It costs $363 to make 90 bags of cotton candy and $440 to make 200 bags of cotton candy.
a) find the cost equation.

Answers

Answer:

363=90bags

then you look into it and say

440=200bags

The volume of this triangular prism is 95,030 cubic inches. What is the value of m?
85 in
86 in
m =

Answers

Answer:

About 28 inches

Step-by-step explanation:

See attached image. Remember that Volume of a prism can be found by multiplying the area of the side face, by the depth.

Our side face is the shape of a triangle, and the depth is the unknown, m.

Solve the area of the triangle

Divide the volume by the area of the triangle to find our depth

anyone know the answer?​

Answers

Answer:

I think it could be A

Step-by-step explanation:

Not 100% sure tho

Which of the following best describes the graph shown below?

Answers

Using function concepts, it is found that the statement that correctly describes the function is:

C. This is the graph of a one-to-one function.

When does a graph represents a function?

A graph represents a function if it is one-to-one, that is, each value of x is mapped to one value of y.

In this problem, this happens, each value of x is mapped to one value of y, in a non-linear format, hence option C is correct.

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honestly so confused

Answers

Answer:

The first part put 6

second, put 2

third put 1

Step-by-step explanation:

it was just asking for the number, not anything else, so you would just add like terms.

and could u pls put me as the brainliest

Tyshawn went shopping for a new pair of pants. Sales tax where he lives is 6%. The price of the pair of pants is $49. Find the total price including tax. Round to the nearest cent.

Answers

The total price of new pair of pants including tax will be $ 51.94.

What is the percentage?

Everything is stated as if it was a fraction of a hundred in quantity.

Tyshawn went shopping for a new pair of pants.

Sales tax where he lives is 6%.

The price of the pair of pants is $49.

Then the total price of new pair of pants including tax will be

Total cost = 49 x (1 + 0.06)

Total cost = 49 x 1.06

Total cost = $ 51.94

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