Question 1159417
The local zoning code for a rectangular billboard requires that the width is 4 feet less than the length. An advertiser wants a billboard to have an overall perimeter of 60 feet. What should the length of the billboard be?
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width is 4 feet less than the length
W = L - 4
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P = 2W + 2L = 60
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W = L - 4
W + L = 30
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Can you take it from there?