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a cement delivery truck charges $75.00 for deliverly Its $3.00 per cubic feet and the man wants 56 cubic feet of concrete. Help me write an equation and solve.

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1 Answer

Equation for the charge in terms of x cubic feet: C(x) = 75 + 3x

i) C(56) = 75 + 3(56) = $243

ii) 316 = 75 + 3x

Solve for x,

x = 80.3 ft^3