document.write( "Question 997176: One brand of cleaner used to etch concrete is 30% acid. A stronger industrial strength cleaner is 55% acid. How many gallons of each cleaner should be mixed to produce gallons of a 50% acid solutions?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #615407 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
The question would be reasonably as long as percents are not meant as %w/w.
\n" ); document.write( "Both must be either volume per volume or mass per volume.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "this is an example of how the type of problem can be solved. One variable only but two materials.
\n" ); document.write( "
\n" );