document.write( "Question 325046: How many bags of 5% concrete should be mixed with 7 bags of 23% concrete to get a mix of 12% concrete? \n" ); document.write( "
Algebra.Com's Answer #232782 by nyc_function(2741)\"\" \"About 
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Let b = bags of concrete\r
\n" ); document.write( "\n" ); document.write( "0.05b + 7(0.23) = 0.12(b + 7)\r
\n" ); document.write( "\n" ); document.write( "Can you take it from here?\r
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