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The length of a rectangle is 3m more than twice its width and the area of the rectangle is 35m squared. What are the dimensions of the rectangle?
Wiki User
∙ 13y ago
You can come up with 2 equations
1) L + 3 = 2w
2) L X W = 35
Rearrange the first equation so it is L= 2w - 3 then substitute into the second equation.
(2w - 3)w = 35
2w2-3w =35 from here we need to factor
2w2-3w-35
(2x+7)(x-5)
This means that x either equals -2/7 (impossible) or 5
Since the width is 5 the length is 7 which can be checked by plugging the two numbers into the two original equations
Wiki User
∙ 13y ago
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