SOLUTION: The Octane rating of a gasoline is a measure of the amount of iso-octane in the gas. Manufacture recommend using 93-octane gasoline on returned motors. How much 87-octane gas and 9

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: The Octane rating of a gasoline is a measure of the amount of iso-octane in the gas. Manufacture recommend using 93-octane gasoline on returned motors. How much 87-octane gas and 9      Log On

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Question 491444: The Octane rating of a gasoline is a measure of the amount of iso-octane in the gas. Manufacture recommend using 93-octane gasoline on returned motors. How much 87-octane gas and 95-octane gas should Yousef mix in order to make 10 gallons of octane for his returned F-150?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Manufacturers recommend using 93-octane gasoline on returned motors. How much 87-octane gas and 95-octane gas should Yousef mix in order to make 10 gallons of octane for his returned F-150?
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Equation:
iso + iso = iso
0.87x + 0.95(10-x) = 0.93*10
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Multiply thru by 100 to get:
87x + 95*10 - 95x = 93*10
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-8x = -2*10
x = 2.5 gallons (amt. of 87-octane needed)
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10-x = 7.5 gallons (amt. of 95-octane needed)
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Cheers,
Stan H.
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