All categories

2 years ago

The length of a rectangle is 3 times twice the width. The perimeter is 36. What are the side lengths?

Mathematics

1 answer:

Svetllana [295]2 years ago

8 0

Answer & Explanation:

For this question, you need to figure out the length and the width because the area is directly related to them (A = l*w).

What we do know is that the perimeter is 36 inches. Since the perimeter is equal to P = 2l + 2w, we can say:

P = 36 = 2(3 + 2w) + 2(w), where the length l is 3 + 2w

Solve for w first, then solve for l. Use these values to find the area.

Pls, choose me as brainliest!

You might be interested in

HELP ME (also simplifying)

Alex

The first one is 4/9 lol but everything is super hard to read

3 0

3 years ago

Read 2 more answers

Another question like the last, please help!!!

gizmo_the_mogwai [7]

W(2) = 2^2 + 2 = 4 + 2 = 6
u(w(2)) = -x -2 = -6 - 2 = -8

answer: u(w(2)) = -8

5 0

3 years ago

What the variable x represents

allsm [11]

Answer:

the variable x represents a hidden or unkown value

Step-by-step explanation:

3 0

3 years ago

When placed end to end, three red rods are 2 cm longer than than 2 blue rods. Three blue rods are 2 cm longer than four red rods

Oxana [17]

Answer:

Red = 10 cm, blue = 14 cm

Step-by-step explanation:

Let the length of each red rod be r and each blue rod be b

Then we have:

3r - 2b = 2
3b - 4r = 2

Multiply the first equation by 3 and the second one by 2:

9r - 6b = 6
6b - 8r = 4

Add the equations to eliminate one of variables:

9r - 8r = 6 + 4
r = 10 cm

Find the value of b:

3*10 -2b = 2
30 - 2 = 2b
2b = 28
b = 14 cm

5 0

3 years ago

How do you get the answer 1 and 1/4-3/8

JulijaS [17]

U first find the common denominator which is 8

Then subtract to get 7/8

5 0

3 years ago