Question

The electricity to run a water heater for 1 week costs $15.40. How much does it cost to run the water heater for 365 days?

Answer 1

800

Explanation:

52 weeks in a year then multiply 15.40

Answer 2

$803

Explanation:

cost of electricity for 1 week = 15.40

⇒ cost of electricity for 1 day = 15.40 ÷ 7 = 2.20

⇒ cost of electricity for 365 days = 2.20 x 365 = 803