A residential home single car garage floor is 8 yds. x 11 ft 8 in. x 4 in. thick. A contractor must use ten (10) #4 ten ft steel rebars (1/2in. X 10 ft) to construct this floor plus the concrete. If delivered concrete costs $200/yd3 and a #4 ten ft steel rebar costs $9.34 (1/2in. X 10 ft), what is the cost of materials in dollars for the floor?
A residential home single car garage floor is 8 yds. x 11 ft 8 in. x 4 in. thick. A contractor must use ten (10) #4 ten ft steel rebars (1/2in. X 10 ft) to construct this floor plus the concrete. If delivered concrete costs $200/yd3 and a #4 ten ft steel rebar costs $9.34 (1/2in. X 10 ft), what is the cost of materials in dollars for the floor?
Expressing the dimensions in yds., we have
8yds * 35/9 yds. * 1/9 yds = 280/81 cubic yds.
So....the total cost =
(280/81) * 200 + 10 * (9.34) ≈ $ 784.76
