Question

The perimeter of the rectangle is 108 m. If the length is double the width. What is the width of the rectangle?

Answer 1

Answer:

length=2x

width=x

perimeter=2(3x) =108

6x=108

x=18

length=36m

breadth=18m

Answer 2

Answer:

w=.2L

(Because "the width "is" 20% (or .2) "of" the length, and "is" is interpreted as an equal sign, and "of" is interpreted as multiplication)

Then

108=2×.2L+2L

Because 108 is the total perimeter, and you can substitute .2L in for w

So

108=2.4L (.4L+2L)

Then

L= 45 (108÷2.4)

And so

w=.2L

w=.2×45

w=9

Confirm that 2×9+2×45=108 and you know you've got the right answer!

Step-by-step explanation:

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