document.write( "Question 247845: a contractor mixes concrete from bags of pre-mix for small jobs. how many bags with 6% cement should he mix with 10 bags of 16.2 cement to produce a mix containing 12% cement? \n" ); document.write( "
Algebra.Com's Answer #180682 by richwmiller(17219)\"\" \"About 
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let x equal number of bags of 6 percent cement
\n" ); document.write( ".06x+10(.162)=(10+x)(.12)
\n" ); document.write( "solve for x
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