document.write( "Question 709509: A chainsaw runs on fuel that is 10% oil and 90% gas. How much oil will have to be added to 3 gallons of fuel that is 5% oil and 95% gas in order to use it in the chainsaw? \n" ); document.write( "
Algebra.Com's Answer #436609 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A chainsaw runs on fuel that is 10% oil and 90% gas. How much oil will have to be added to 3 gallons of fuel that is 5% oil and 95% gas in order to use it in the chainsaw? \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "oil + oil = oil \n" ); document.write( "0.05*3 + 1*x = 0.10(3+x) \n" ); document.write( "---- \n" ); document.write( "5*3 + 100x = 10*3 + 10x \n" ); document.write( "90x = 5*3 \n" ); document.write( "x = 1/6 gallon (amt. of pure oil needed for the mixture) \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================= \n" ); document.write( " \n" ); document.write( " |