SOLUTION: The length of a rectangle is 3 cm more than twice the width. the perimeter is 84cm. Find the length.
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Question 303477: The length of a rectangle is 3 cm more than twice the width. the perimeter is 84cm. Find the length.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
letthewidthbe x
length = 2x+3
perimeter = 2*l+2*W
84= 2x+2(2x+3)
84=2x+4x+6
84=6x+6
78=6x
x=13 which is the width
length = 2*13+3
=29
Ananth
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