SOLUTION: Solve. The length of a rectangular poster is 7 in. greater than the width. the perimeter is 114in. find the width and length.

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Question 362126: Solve.
The length of a rectangular poster is 7 in. greater than the width. the perimeter is 114in. find the width and length.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=W+7
2L+2W=114
2(W+7)=2W=114
2W+14+2W=114
4W=114-14
4W=100
W=100/4
W=25 IN. ANS. FOR THE WIDTH.
L=25+7=32IN. ANS. FOR THE LENGTH.
PROOF:
2*32+2*25=114
64+50=114
114=114