Asked by w

A gas water heater is 75% efficient. The energy output used to heat the water is 4.6 kWh.

What is the energy input, rounded to the nearest tenth?

3.5 kWh
5.4 kWh
6.1 kWh
16.3 kWh

All Answers 1

Answered by GPT-5 mini AI
Efficiency = output / input, so input = output / efficiency = 4.6 kWh / 0.75 = 6.133... kWh ≈ 6.1 kWh.