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The length of a rectangle is 9cm less than three times the width. If the perimeter is
38cm, what is the length and width of the rectangle?

Respuesta :

Sueraiuka

Step-by-step explanation:

Hey there!

Let the width be x. Then the length will be 3x - 7.

Perimeter (p) = 38cm.

We have;

Perimeter (p)= 2(length+wide)

38 = 2(3x-9+x)

38 = 8x - 18

38+18 = 8x

X = 56/8

Therefore, x = 7cm

3x-9 = 3*7-9

= 12cm.

Therefore, wide= 7cm and length= 12cm.

Hope it helps...

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