document.write( "Question 1069233: A certain concrete mixture contains 4.00% cement and 5.00% sand. How many kilograms of this mixture and how many kilograms of sand should be combined with 225 kg of cement to make a batch that is 13.0% cement and 14.0% sand? Carry out all calculations exactly and round to three significant digits final answers only. \n" ); document.write( "
Algebra.Com's Answer #684428 by josgarithmetic(39623)\"\" \"About 
You can put this solution on YOUR website!
See the other posting for the correct setup of equations for this problem.\r
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