document.write( "Question 1051970: Terry's teacher asks her to add acid to 8 gallons of a 32% acid in water solution to get a solution that is 70% acid. How much pure acid should she add? \n" ); document.write( "
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\n" ); document.write( "Terry's teacher asks her to add acid to 8 gallons of a 32% acid in water solution to get a solution that is 70% acid. How much pure acid should she add?
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\n" ); document.write( "Add A gallons.
\n" ); document.write( "then,
\n" ); document.write( "8*32 + A*100 = (8+A)*70
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