document.write( "Question 261212: How many 5% bags of cement need to be added to 3 bags of 10% cement to make 6%. I thought 12 but I'm not sure how to write the equation. \r
\n" ); document.write( "\n" ); document.write( "3 x 10% = 30% + 12 x 5% = 90% / 15 bags = 6\r
\n" ); document.write( "\n" ); document.write( "Thanks \n" ); document.write( "

Algebra.Com's Answer #192411 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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How many 5% bags of cement need to be added to 3 bags of 10% cement to make 6%
\n" ); document.write( ":
\n" ); document.write( "5x + 10(3) = 6(x+3)
\n" ); document.write( "5x + 30 = 6x + 18
\n" ); document.write( "5x - 6x = 18 - 30
\n" ); document.write( "-x = -12
\n" ); document.write( "x = 12, you are right \n" ); document.write( "

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