document.write( "Question 897498: A mechanic has a supply of 25% antifreeze solution and 50% antifreeze solution. How much of each should be mixed together in order to have 20 gallons of a 35% antifreeze solution \n" ); document.write( "
Algebra.Com's Answer #544366 by richwmiller(17219)\"\" \"About 
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a+b=20
\n" ); document.write( "0.25*a+0.5*b=0.35*20
\n" ); document.write( "a=12., b=8.
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