document.write( "Question 1101169: Penter decides to mix grade of gasoline in his truck. He put in 5 gallons of regular and 10 gallons of premium for a total cost of $31.05. If premium gasoline cost $0.18 more per gallon then regular what was the price of each grade of gasoline? \n" ); document.write( "

Algebra.Com's Answer #715788 by josgarithmetic(39618) $\"\"$ $\"About$

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$\"PRICE%2AVOLUME=COST\"$ , $\"basic\"$ $\"idea\"$ \r
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document.write( "             PRICE   GALLONS  COST(dollars)\r\n" );
document.write( "REGULAR       p       5       5p\r\n" );
document.write( "PREMIUM      p+0.18   10     10(p+0.18)\r\n" );
document.write( "Total                 15      31.05\r\n" );
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\r
\n" ); document.write( "\n" ); document.write( " $\"5p%2B%2810p%2B1.8%29=31.05\"$
\n" ); document.write( " $\"15p%2B1.8=31.05\"$
\n" ); document.write( " $\"highlight%28p=1.95%29\"$ ---------price per gallon for regular
\n" ); document.write( "-
\n" ); document.write( " $\"p%2B0.18=highlight%282.13%29\"$ ------price for premium \n" ); document.write( "

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