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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 7 liters of synthetic oil. In order to make 672 liters of petrolyn oil, how many liters
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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 7 liters of synthetic oil. In order to make 672 liters of petrolyn oil, how many liters of natural oil is needed?

User Meewog
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3 votes

(5)/(13) = (x)/(672)

13x=5*672
13x=3360
x=258.5 L of natural oil

User Dablak
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8.8k points
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