SOLUTION: Fifteen liters of fuel containing 3.2% oil is available for a certain two-cycle engine. This fuel is to be used for another engine requiring 5.5%.
Let x = the amount of pure oil
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Question 729214: Fifteen liters of fuel containing 3.2% oil is available for a certain two-cycle engine. This fuel is to be used for another engine requiring 5.5%.
Let x = the amount of pure oil
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You would add x quantity of pure oil to 15 gallons of the fuel containing 3.2% oil.
(Amount of oil)/(amount of mixture) = 5.5%
The only variable is x. Units are liters.
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