document.write( "Question 363046: please help me solve this problem. a chemist has one solution that is 15% acid and another solution that is 10% acid. how much of the 15% solution is needed to make 80 L of the solution that is 12% acid \n" ); document.write( "

Algebra.Com's Answer #258781 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi, 
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document.write( "Let x represent the amount of the 15% solution needed.  
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document.write( "Then (80L-x) would be the amount of 10% solution
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document.write( ".15x + .10(80L-x) = .12*80L
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document.write( "solve for x
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document.write( ".05x = .02*80L
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document.write( "x = 32L of the 15% solution is needed\r
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document.write( "checking our answer
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document.write( ".15*32L + .10*48 = 4.8 + 4.8 = 9.6 \n" );
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