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Linear Equations Word Problem : Cost of Water

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The cost of water in dollars is a linear function of the amount used in hundreds of cubic feet, HCF.

The cost for using 27 HCF of water is $38.08, and the cost of using 45 HCF is $62.38. What is the cost of using 34 HCF of water?

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A word problem is solved using a linear equation. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

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