document.write( "Question 130390: I have a word problem, think I have an answer. Could you let me know for sure.
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document.write( "A chemist is making 200 Liters of solution that is 62% acid. He is mixing 80% acid solution with a 30% acid solution. How much of the 80% acid solution will he use? I have 68 liters. Could you let me know if this is correct, thank you I really appreciate the help. \n" );
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Algebra.Com's Answer #95254 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! here is a \"rule of thumb\" for mixture problems \n" ); document.write( "__ the average of 80% and 30% is 55% __ this is what you get mixing them in equal parts \n" ); document.write( "__ since the mixture is supposed to be 62%, it must be more than half of the 80% \n" ); document.write( "__ so the amount of 80% is more than 100L\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let x=\"amount of 80%\", so 200-x=\"amount of 30%\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(80%)(x)+(30%)(200-x)=(62%)(200) __ .8x+60-.3x=124 __ .5x=64 \n" ); document.write( " |