High School

A pump station has the following equipment:

- Six 500 hp pumps that run an average of 5 hours a day each.
- A 5 hp sump pump that operates for 1.5 hours per day.
- Twenty 100-watt lights that are always on.
- Six 300-watt night lights that are on for 10 hours a day.

What is the monthly operating cost if power costs 8.75 cents per kWh? (Assume a month is 30 days.)

Answer :

Answer:

4*0.07=energy use per day(x)

(x)*30=energy use in thirty days (y)

Therefore

X=$0.28

Y=$8.4

Explanation:

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