Mathematics
Tonycoulter28
2015-11-02 19:51:39
A flat rectangular piece of aluminum has a perimeter of 70 inches. The length is 11 inches longer than the width. Find the width. A. 34 inches B. 35 inches C. 23 inches D. 12 inches
ANSWERS
annaburns
2015-11-02 22:26:12

perimeter = 2L +2wL = w+1170 = 2(w+11) +2w70 = 2w+22+2w70= 4w + 2248 = 4ww=48/4 = 12width = 12length = 12+11 = 232x12 = 242x23 = 4646+24 = 40 length = 23 inches, width = 12 inchesAnswer is D

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