document.write( "Question 1184881: A mixture of 22% disinfectant solution is to be made from 15% and 25% disinfectant solutions. How much of each solution should be used if 20 gallons of the 22% solution are needed?\r
\n" ); document.write( "\n" ); document.write( "I tried .25x+.15(20-x)=.22*20
\n" ); document.write( "as my equation, and got x =14. so, you would need 6 gallons of 25 and 14 of 15 but i got it wrong. \n" ); document.write( "

Algebra.Com's Answer #815539 by MathTherapy(10552) $\"\"$ $\"About$

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A mixture of 22% disinfectant solution is to be made from 15% and 25% disinfectant solutions. How much of each solution should be used if 20 gallons of the 22% solution are needed?\r
\n" ); document.write( "\n" ); document.write( "I tried .25x+.15(20-x)=.22*20
\n" ); document.write( "as my equation, and got x =14. so, you would need 6 gallons of 25 and 14 of 15 but i got it wrong.
\n" ); document.write( "

You let the amount of 25% solution to be mixed, equal to x. This then led to your equation: .25x + .15(20 - x) = .22(20)
\n" );
document.write( "When you solved that for x, you got 14 gallons. Remember, x represents the amount of 25% solution, NOT the amount of 15% solution. \n" );
document.write( "

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