document.write( "Question 818481: You need a 80% acid solution. You have 110 mL of 25% on hand. How much of a 90% acid solution should you add to obtain the desired solution? \n" ); document.write( "
Algebra.Com's Answer #492982 by richwmiller(17219)\"\" \"About 
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You need a 80% acid solution. You have 110 mL of 25% on hand. How much of a 90% acid solution should you add to obtain the desired solution?
\n" ); document.write( ".25*110+.9x=.8*(110+x)
\n" ); document.write( "27.5+.9x=88+.8x
\n" ); document.write( ".1x=61
\n" ); document.write( "x=610\r
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