SOLUTION: George decides to mix grades of gasoline in his truck. He puts in 8 gallons of regular and 12 gallons of premium for a total cost of $55.80. If premium gasoline costs $0.15 more p

Question 545682: George decides to mix grades of gasoline in his truck. He puts in 8 gallons of regular and 12 gallons of premium for a total cost of $55.80. If premium gasoline costs $0.15 more per gallon than regular, what was the price of each grade of gasoline.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
George decides to mix grades of gasoline in his truck. He puts in 8 gallons of regular and 12 gallons of premium for a total cost of $55.80. If premium gasoline costs $0.15 more per gallon than regular, what was the price of each grade of gasoline.
---------------------
8*p + 12*(p+15) = 5580
20p = 5400
p = $2.70/gallon of Reg
--> $2.85/gallon of premium

RELATED QUESTIONS
George decides to mix grades of gasoline in his truck. He puts in 8 gallons of regular... (answered by stanbon,Alan3354)

peter decides to mix grades of gasoline in his truck. he puts in 12 gallons of regular... (answered by josmiceli,mananth)

Kevin decides to mix grades of gasoline in his truck. He puts in 5 gallons of regular and (answered by josgarithmetic)

peter decides to mix grades of gasoline in his truck. He puts in 6 gallons of regular and (answered by josgarithmetic)

Lydia decides to mix grades of gasoline in her truck. She puts in 6 gallons of regular... (answered by dragonwalker)

Jessica decides to mix grades of gasoline in her truck. She puts in 5 gallons of regular (answered by ptaylor)

Penter decides to mix grade of gasoline in his truck. He put in 5 gallons of regular and... (answered by josgarithmetic)

Peter decides to mix grades of gasoline in his truck. He put in 6 gallons of regular in 7 (answered by Boreal)

The total cost of 8 gallons of regular unleaded gasoline and 12 gallons of premium... (answered by LilSkittleMd)