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OpenStudy (anonymous):
A rectangle has a length 25% longrr than the width, and an area of 80cm squared. Determine the length and width.
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OpenStudy (anonymous):
8 and 10
OpenStudy (anonymous):
But how do you solve it
OpenStudy (anonymous):
well 25% longer means l=(5/4)*w and since l*w=80 => (5/4)*w^2 = 80 so w^2=64
OpenStudy (anonymous):
Thannks so much!
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