SOLUTION: The length of a rectangle is twice its width. If the length is decreased by 10ft. and the width is increased by 8ft., the area is increased by 100 sq.ft. What are the dimension of
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Question 895123: The length of a rectangle is twice its width. If the length is decreased by 10ft. and the width is increased by 8ft., the area is increased by 100 sq.ft. What are the dimension of the rectangle?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
w and L.
-
Changes to w and L.
L-10 for length
w+8 for width
Substitute for A.
Begin simplifying.
We were given a description for how L and w are related; so substitute for L.
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