Math

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The electricity costs of a business increased from \$18,000 one year to \$19,000 the next. To the nearest whole percent, what was the rate of increase?

• Math -

I am not sure how you are learning to do this problem, but if you set up a proportion, you can get the answer

18 over 1 = 19 over x
18x=19
x=1.06

1.06(18)=19000

• Math -

Garrett washes 3 cars in 72 minutes. How many minutes does it takes Garrett to wash one car?

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