SOLUTION: My problem is " The length of a rectangle is 4 times the width. The perimeter is 90 cm. Find the width and length

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Question 359176: My problem is " The length of a rectangle is 4 times the width. The perimeter is 90 cm. Find the width and length
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,

Let x be the width.  Then length is 4x

twice the length + twice the width = P

2*4x  + 2x = 90cm

10x = 90cm 

x = 9cm

width is 9cm and the length is 36cm



checking our answer

72 + 18 = 90