Question

A trough is filled with water. The trough holds 315 gallons. Each cubic foot of water contains about 7.5 gallons. The trough is 7 feet long and 4 feet wide. What is the height of the trough?

Answer 1

The height of the trough is about 1.5 ft

Explanation:

If each cubic foot of water contains about 7.5 gallons.

Then; 315 gallons is about
`(315)/(7.5)=42ft^3`

Let h be the height of the trough, then

`7* 4* h=42`

This implies that;

`28h=42`

Divide both sides by 28 to get:

`h=(42)/(28)`

`\therefore h=1.5`

The height of the trough is about 1.5 ft