Question

A sewer line slopes 1/4" per foot grade. Calculate the total fall in 30 feet.

Answer 1

Hello!

The answer is:

The total fall in 30 feet will be 7.5 inches.

Why?

To calculate the total fall in 30 feet, given the slope (decreasing rate for this case), we need to use the following equation:

`TotalFall=((1)/(4) inch)/(foot)*FeetAmount`

We are asked to calculate the total fall in 30 feet, so, substituting it into the equation, we have:

`TotalFall=((1)/(4) inch)/(foot)*30feet`

`TotalFall=7.5inch`

Hence, we have that the total fall in 30 feet will be 7.5 inches.

Have a nice day!