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Holly is buying water. She needs 3 liters. A half-liter of water costs $2.89. A 250-milliliter container of water costs $1.29. What should Holly buy so she gets 3 liters at the lowest price? Explain.

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sqdancefan

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Answer:

  12 250 mL containers

Step-by-step explanation:

Two of the 250 mL containers will have the same volume as a half-liter container (500 mL), but at a price that is $2.58 instead of $2.89.

Holly needs to buy 12 of the 250 mL containers of water to get the lowest price.

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3 L = 3000 mL = 6(1/2 L) = 12(250 mL)

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