a new sidewalk will be 6 feet wide 160 feet long and filled to a depth of 9 inches 0.75 foot with concrete, ow many yards of concrete are needed? the new sidewalk needs_______ cubic yards of concrete

convert all dimensions to yards, and you have

v = 6/3 * 160/3 * 1/4 = 80/3 yd^3

I don't know please give me the answer

The new sidewalk needs approximately 22.22 cubic yards of concrete.

To find the volume of concrete needed for the new sidewalk, we'll first calculate the volume in cubic feet and then convert it to cubic yards.

1. Calculate the volume in cubic feet:
The formula to calculate the volume of a rectangular prism is length × width × height.

In this case, the length is 160 feet, the width is 6 feet, and the depth is 9 inches (or 0.75 feet).

Volume = length × width × depth
Volume = 160 ft × 6 ft × 0.75 ft
Volume = 720 cubic feet

2. Convert the volume to cubic yards:
Since concrete is often sold in cubic yards, we need to convert the volume from cubic feet to cubic yards.

There are 27 cubic feet in 1 cubic yard.

Volume (cubic yards) = Volume (cubic feet) ÷ 27
Volume (cubic yards) = 720 ft³ ÷ 27
Volume (cubic yards) ≈ 26.67 cubic yards

Therefore, the new sidewalk needs around 26.67 cubic yards of concrete.