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Mathematics, 19.10.2019 04:50 jennycrapson

Petrolyn motor oil is a combination of natural oil and synthetic oil. it contains
5liters of natural oil for every 7 liters of synthetic oil. in order to make 684 liters of petrolyn oil, how many liters of natural oil are needed?

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Petrolyn motor oil is a combination of natural oil and synthetic oil. it contains
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