document.write( "Question 295804: Please translate the problem into a pair of linear equations in two vaiables. Solve the equations using either elimination or substitution. State your answer for the specified variable.\r
\n" ); document.write( "\n" ); document.write( "A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 7% cement should he mix with 10 bags of 15.5% cement to produce a mix containing 12% cement? (Please help) Thanks!!\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #213263 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
y=10
\n" ); document.write( "x+y=x+10
\n" ); document.write( "10*.155+.07x=.12*(x+10)
\n" ); document.write( "x=7 bags of 7%
\n" ); document.write( "
\n" ); document.write( "
\n" );