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32 = L + W + L + W 32 = 10 + W + 10 + W 12 = W + W 6 = W
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To write one tenth of w in an algebraic expression, you can use the expression (1/10)w or w/10. Both of these expressions represent dividing w by 10, which is equivalent to finding one tenth of w.
10
The width is 4 feet and the length is 6 feet. L + W = P/2 = 10, so L = 10 - W; L x W = 24 so W(10 - W) = 24 ie W2 - 10W + 24 = 0 This factorizes as (W - 4)(W - 6) so W = 4 and L = 6