Question

An outdoor spa​ (hot tub) draws 1504 watts to keep the water warm. If the utility company charges ​$0.14 per​ kilowatt-hour, how much does it cost to operate the spa for four months during the winter​ (24 hours per​ day)? Assume each month has 30 days.

Answer 1

$606.41

Explanation:

1504 W * (1 kW)/(1000 W) * 0.14 $/(kW*h) * 4 months * (30 days)/(month) * (24 hours)/day =

= $606.41