Mathematics: Anew sidewalk will be 4 ft wide, 280 ft long, and filled to a depth of 9 inches (0.75 ft) with concrete. how many cubic yards of concrete are needed?

plz i d`t knowStep-by-step explanation:...

Anew sidewalk will be 4 ft wide, 280 ft long, and

lovely8458

15.03.2022

Volume of the pit is 31.11 cubic yards.

Step-by-step explanation:

First lets change all the values to yards.

1 yard = 3 foot

Width in yards = $\frac{4}{3}$ yards

Length in yards = $\frac{280}{3}$ yards

Depth in yards = $\frac{0.75}{3}$ yards

Volume of the pit = Length * Width * Depth

= $\frac{4}{3} *\frac{280}{3} *\frac{0.75}{3}$

= $\frac{4*280*0.75}{3*3*3}$

= $\frac{840}{27}$

= 31.11 cubic yards.

Volume of the pit is 31.11 cubic yards.

0,0(0 оценок)