SOLUTION: the perimeter of a rectangle is 66 meters. the width of the rectangle is 9 meteres less than the length. find the length and width of the rectangle

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Question 1010708: the perimeter of a rectangle is 66 meters. the width of the rectangle is 9 meteres less than the length. find the length and width of the rectangle

Found 2 solutions by It is costly, MathLover1:
Answer by It is costly(175) About Me  (Show Source):
Answer by MathLover1(20849) About Me  (Show Source):
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the perimeter of a rectangle is P=66m.
the width W of the rectangle is 9m less than the length L:
L=W%2B9m

P=2L%2B2W.....substitute L
66m=2%28W%2B9m%29%2B2W
66m=2W%2B18m%2B2W....all terms divide by 2
33m=W%2B9m%2BW
33m-9m=2W
24m=2W
24m%2F2=W
highlight%28W=12m%29
now find L
L=12m%2B9m
highlight%28L=21m%29