document.write( "Question 960804:
\n" ); document.write( "A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 4% cement should he mix with 10 bags of 11.6% cement to produce a mix containing 8% cement? \n" ); document.write( "
Algebra.Com's Answer #587189 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
            |  no. of bags | % as  | no. of bags of\r\n" );
document.write( "            |  of pre-mix  |decimal|  pure cement\r\n" );
document.write( "------------|--------------|-------|---------------\r\n" );
document.write( "   4% cement|      x       | 0.04  |    0.04x\r\n" );
document.write( "------------|--------------|-------|---------------\r\n" );
document.write( "11.6% cement|     10       |0.116  |  0.116(10)\r\n" );
document.write( "------------|--------------|-------|---------------\r\n" );
document.write( "   8% cement|    x+10      | .08   | 0.08(x+10)\r\n" );
document.write( "\r\n" );
document.write( "0.04x + 0.116(10) = 0.08(x+10)\r\n" );
document.write( "\r\n" );
document.write( "Solve to get answer\r\n" );
document.write( "\r\n" );
document.write( "Edwin
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