document.write( "Question 353720: A chemist has one solution that is 80% acid and another that is 30% acid. He needs 200 liters of a solution that is 62% acid. How much of each should be used?\r
\n" );
document.write( "\n" );
document.write( "Let x=number of liters of 80% solution
\n" );
document.write( " Y= number of liters of 30% solution \n" );
document.write( "
Algebra.Com's Answer #252845 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A chemist has one solution that is 80% acid and another that is 30% acid. He needs 200 liters of a solution that is 62% acid. How much of each should be used? \n" ); document.write( "------------------ \n" ); document.write( "Equation: \n" ); document.write( "acid + acid = acid \n" ); document.write( "0.80x + 0.30(200-x) = 0.62*200 \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "80x + 30*200 - 30x = 62*200 \n" ); document.write( "50x = 32*200 \n" ); document.write( "x = 4*32 = 128 liters (amt. of 80% solution needed in the mixture) \n" ); document.write( "200-x = 72 liters (amt. of 30% solution needed in the mixture) \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |