kimmoney5371 kimmoney5371

27-12-2017
Mathematics

contestada

The area of a rectangle is 490490 in squaredin2. the ratio of the length to the width is 5 : 25:2. find the length and the width.

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jorel1380 jorel1380

01-01-2018

Let the width be 2w. Then the lenght is 5w. So:
(2w)(5w)=490
10w²=490
w²=49
w=±7
So, 2w=width=14 in; and 5w=length=35 in
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