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anonymous
 one year ago
Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains
3
liters of natural oil for every
4
liters of synthetic oil. If
316
liters of synthetic oil are used, how many liters of Petrolyn oil will be made?
anonymous
 one year ago
Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 3 liters of natural oil for every 4 liters of synthetic oil. If 316 liters of synthetic oil are used, how many liters of Petrolyn oil will be made?

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badmood
 one year ago
Best ResponseYou've already chosen the best response.0The Petrolyn is 8/13 natural and 5/13 synthetic. If we start with 760 liters of natural oil we can make: (760 liters Natural) ( 13/8 Petrolyn/Natural ) = 1235 liters Petrolyn Note how adding the 'units' into the calculation makes it clear what cancels with what in the numerical conversion.
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