SOLUTION: The perimeter of the state of Wyoming is 1280 mi. The width is 90 mi less than the length. Find the width and the length.

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Question 292117: The perimeter of the state
of Wyoming is 1280 mi. The width is 90 mi less than
the length. Find the width and the length.
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
P=2L%2B2W use perimeter formula
P=1280
W=L-90
substitute and solve for L
P=2L%2B2W substitute P and W
1280=2L%2B2%28L-90%29 distribute the 2
1280=2L%2B2L-180 add like terms
1280=4L-180 add 180
1460=4L divide by 4
highlight%28365=L%29
W=L-90 substitute L
W=365-90 subtract
highlight%28W=275%29