Question

You are replacing a water heater. Before installing the new water heater, you must drain the old water heater. You want to drain it ¾ of the way before having to remove it. If the water heater holds 40 gallons. How much water must you drain?

Answer 1

30 gallons

Explanation:

You are replacing a water heater. Before installing the new water heater, you must drain the old water heater. You want to drain it ¾ of the way before having to remove it. If the water heater holds 40 gallons. How much water must you drain?

We are told from the question that you must drain the water 3/4 of the way

The water heater holds 40 gallons

Hence,

3/4 × 40 gallons = 30 gallons.

Hence , you must drain 30 gallons of the water in the water heater.