document.write( "Question 412013: To get 90ml of a 35% sugar solution, a 65% solution is mixed with a 20% solution. How much of the 65% solution is needed? \n" ); document.write( "
Algebra.Com's Answer #289459 by stanbon(75887)\"\" \"About 
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To get 90ml of a 35% sugar solution, a 65% solution is mixed with a 20% solution. How much of the 65% solution is needed?
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\n" ); document.write( "Equation:
\n" ); document.write( "sugar + sugar = sugar
\n" ); document.write( "0.65x + 0.20(90-x) = 0.35*90
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "65x + 20*90 - 20x = 35*90
\n" ); document.write( "45x = 15*90
\n" ); document.write( "x = (1/3)*90
\n" ); document.write( "x = 30ml (amt of 65% needed)
\n" ); document.write( "90-x = 60ml (amt of 20% needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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