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arlik [135]
3 years ago
6

A rectangle has a length that is three times the width . The perimeter of the rectangle is 40 feet.what is the area of the recta

ngle
Mathematics
1 answer:
charle [14.2K]3 years ago
7 0

Answer:

The area is 15 feet

Step-by-step explanation:

So you are going to need two different equations-

l = w(3)

2l + 2w = 40

Insert the first equation into the second-

2(3w) + 2w = 40

Simplify this equation-

6w + 2w = 40

8w = 40

Divide both sides by 5

w = 5

Solve first equation

l = 5(3)

l = 15

Then find the area-

5 x 15 = 75

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