## anonymous 5 years ago 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?

1. anonymous

2. anonymous

3. anonymous

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

4. anonymous

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

5. anonymous

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

6. anonymous

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