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URBAN PLANNING - URBAN RENEWAL MODEL Example 2.4.6 on page 70 of Taha's book Decision variables: XI-Number of units of single-family homes x2 - Number of units of double-family homes x3 = Number of units of triple-family homes x4 - Number of units of quadruple-family homes xs = Number of old homes to be demolished XS Maximize z=1000 x1 + 1900 x2 +2700 x3 +3400 x4 Subject to .18x1 + 28x2 + 4x3 +.5x4 5.856.25x5) S 300 x3 + x4 25 (x + x2 + x3 + x4) 22(x1 + x2 + x3 + x) > 1 (XI + x2 + x3 + x) 50x1+ 70x2 + 130xi + 160x4 + 2xs s S15000 XI X2 XI, X2, x3, x4 >0 Subject to X5 Maximize z=1000 x1 + 1900 x2 +2700 x3 +3400 x .18x1 + 28x2 + 4x1 + 5x 5.85.25xs) 300 x3 + x4 2.25 (x + x2 + x3 + x) 22 (x1 + x2 + x3 + x4) 21 (x1 + x2 + x3 + x4) 50x1 + 70x2 + 130x5 + 160x4 + 2x