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sam used 9ml of dye to make 45 gallons of colored water for a science project. Last week when made 135 gallons. How many milliliters of dye did Sam use last week ? *proportion *

Respuesta :

9 mL of dye for 45 gallons. Unite rate = 45/9=5 Gallons per Ml of dye. 135/5=27


He used 27 mL of dye to make 135 gallons.

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