Question

An electric heater uses 3⁄5 watts of power each hour. How many watts of power will the heater use in 1⁄2 hour?

Answer 1

it would use half the amount of watts.

hope it helps :)

Answer 2

0.3 Watts

Explanation:

We can calculate the watts per hour for one hour:

`(3/5)/1=3/5`

The electric heater uses 3/5 Watts per hour. To determine the Watts that it uses we must multiply by the number of hours it is being used, which is a 1/2 hour:

`=(3/5)\cdot{1/2}=3/10=0.3`

The electric heaters uses 0.3 Watts of power for 1/2 hour.