document.write( "Question 842777: How many gallons of 40% antifreeze should've mixed with 10gallons of 80% to obtain a 65% antifreeze mixture? \n" ); document.write( "

Algebra.Com's Answer #507772 by Alan3354(69443) $\"\"$ $\"About$

You can put this solution on YOUR website!
Do it like this one. Only the numbers are different.
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\n" ); document.write( "Amanda wants to make 8 gal. of a 20% saline solution by mixing together a 56% saline solution and a 8% saline solution. How much of each solution must she use?
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\n" ); document.write( "e = amount of 8%
\n" ); document.write( "f = amount of 56%
\n" ); document.write( "---
\n" ); document.write( "e+ f = 8 (total solution)
\n" ); document.write( "8e + 56f = 20*8 (total saline)
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\n" ); document.write( "e+ f = 8
\n" ); document.write( "e + 7f = 20
\n" ); document.write( "------------ Subtract
\n" ); document.write( "-6f = -12
\n" ); document.write( "f = 2
\n" ); document.write( "e = 6 \n" ); document.write( "

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