document.write( "Question 279092: A chemist needs 150 milliliters of a 65% solution but has only 32% and 77% solutions available. Find how many milliliters of the 77% solution you need to get the desired solution. \n" ); document.write( "
Algebra.Com's Answer #202978 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A chemist needs 150 milliliters of a 65% solution but has only 32% and 77% solutions available. Find how many milliliters of the 77% solution you need to get the desired solution. \n" ); document.write( "----------------------------- \n" ); document.write( "Equation: \n" ); document.write( "active + active = active \n" ); document.write( "0.32x + 0.77(150-x) = 0.65*150 \n" ); document.write( "Multiply thru by 100 \n" ); document.write( "32x + 77*150 - 77x = 65*150 \n" ); document.write( "-45x = -12*150 \n" ); document.write( "x = 40 ml (amt. of 32% solution needed in the mixture) \n" ); document.write( "-------------- \n" ); document.write( "150-x = 110 ml (amt. of 77% solution needed in the mixture) \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |