SOLUTION: A building in a city has a rectangular base. The length of the base measures 60 ft less than three�times the width. The perimeter of this base is 960 ft. What are the dimensions

Question 1094576: A building in a city has a rectangular base. The length of the base measures
60 ft less than three�times the width. The perimeter of this base is 960 ft. What are the dimensions of the base?
what is the width of base in feet? what is the length of base in feet?
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
L = 3W-60
2L + 2W = 960
Substitute for L:
2(3W-60)+2W = 960
Distribute the 2 (Distributive Properties of Multiplication)
6W-120+2W = 960
8W = 1080
W = 135
and the Length: (135*3)-60 = 345
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Check:
2(135) + 2(345) = 960
270 + 690 = 960 Correct

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