document.write( "Question 1047711: How many gallons of a 70% antifreeze solution must be mixed with 80 gallons of 15% antifreeze to get a mixture that is 60% antifreeze? Use the six step method \n" ); document.write( "
Algebra.Com's Answer #663255 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
What is the \"six step method\"?\r
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\n" ); document.write( "\n" ); document.write( "y, a variable for how many gallons of the 70% antifreeze to add.\r
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\n" ); document.write( "\n" ); document.write( "\"pureAntifreeze%2FmixtureQuantity=concentrationWanted\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2870y%2B15%2A80%29%2F%28y%2B80%29=60\"-------the key equation to solve\r
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\n" ); document.write( "\n" ); document.write( "\"%287y%2B15%2A8%29%2F%28y%2B80%29=6\"\r
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\n" ); document.write( "\n" ); document.write( "\"7y%2B15%2A8=6y%2B480\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=480-15%2A8\"\r
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\n" ); document.write( "\n" ); document.write( "\"y=360\"
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