Math

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?

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asked by James
  1. 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

    Check your work:
    1.06(18)=19000

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

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    posted by Lola

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