document.write( "Question 1019369: A forester is making a gasoline-oil mixture for a chainsaw engine. The forester has 3 gallons of a mixture that is 31 parts gasoline and 1 part oil. How many gallons of gasoline should the forester add to bring the mixture to 47 parts gasoline and 1 part oil? (Round your answer to two decimal places.) \n" ); document.write( "
Algebra.Com's Answer #635314 by josgarithmetic(39629)\"\" \"About 
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Focus on the concentration of the gasoline.\r
\n" ); document.write( "\n" ); document.write( "Let v be how much of the gasoline to add.\r
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\n" ); document.write( "\n" ); document.write( "Do you understand and KNOW HOW to form this equation?
\n" ); document.write( "\"%283%2831%2F%2831%2B1%29%29%2Bv%29%2F%28v%2B3%29=47%2F%2847%2B1%29\"
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