document.write( "Question 684327: \r
\n" ); document.write( "\n" ); document.write( "how many bags of 7% cement should be mixed with 4 bags of 17% to produce a mix containg 11% cement
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Algebra.Com's Answer #424048 by checkley79(3341)\"\" \"About 
You can put this solution on YOUR website!
.07X+.17*4=.11(4+X)
\n" ); document.write( ".07X+.68=.44+.11X
\n" ); document.write( ".07X-.11X=.44-.68
\n" ); document.write( "-.04X=-23
\n" ); document.write( "X=-.24/-.04
\n" ); document.write( "X=6 BAGS OF 7% IS USED.
\n" ); document.write( "PROOF:
\n" ); document.write( ".07*6+.17*4=.11(4+6)
\n" ); document.write( ".42+.68=.11*10
\n" ); document.write( "1.1=1.1\r
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