Question

The blueprint for a cement slab floor is shown at right. How many cubic yards of cement are needed for ten identical floors that are each 4 inches thick?

Answer 1

but the answer is volume

Answer 2

10*((70*50)-(15*40))

Answer 3

4*10*((70*50)-(15*40))

Answer 4

\[((70\ 50)-(40\ 15))\frac{4}{12}=\frac{2900}{3}=966 \frac{2}{3} \]

Answer 5

Sorry. There were 10 floors in the estimate.
9666.67 for 10 floors.