document.write( "Question 1134792: a certain concrete mixture contains 6.00% cement and 8.00% sand how many kilograms of sand should be combined with 255 kg of cement to make aa batch that is 14.0% cement and 16.0% sand? \n" ); document.write( "
Algebra.Com's Answer #752272 by ankor@dixie-net.com(22740)\"\" \"About 
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a certain concrete mixture contains 6.00% cement and 8.00% sand
\n" ); document.write( " how many kilograms of sand should be combined with 255 kg of cement to make a
\n" ); document.write( " batch that is 14.0% cement and 16.0% sand?
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\n" ); document.write( "let x = the total amt of the concrete in this new mixture
\n" ); document.write( "14% of the new mixture equals 255
\n" ); document.write( ".14x = 255
\n" ); document.write( "x = 255/.14
\n" ); document.write( "x = 1821.43 kg total weight of the concrete
\n" ); document.write( ":
\n" ); document.write( "Find the amt of sand in this concrete mixture
\n" ); document.write( ".16 * 1821.43 = 291.43 kg of Sand required
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