document.write( "Question 752538: In the barn there are 100 kg wheat and rye, rye is 10%. How many kg of wheat should be added which the content of rye to be 4%? \n" ); document.write( "

Algebra.Com's Answer #457824 by malglu(63) $\"\"$ $\"About$

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there is now 10kg of rye, this will not chankge. we want to add x kg of wheat to the 100kg of mixed grains we have, so that 4% (4/100) of it will be 10kg of rye\r
\n" ); document.write( "\n" ); document.write( "4/100 * (100 +x) = 10
\n" ); document.write( "multiply out and reaarange to get 4x=600
\n" ); document.write( "x = 150\r
\n" ); document.write( "\n" ); document.write( "so we need to add 150kg of wheat \r
\n" ); document.write( "\n" ); document.write( "(this gives us 250kg of mixture of which 4% is rye, because 10kg/250kg is 4%) \n" ); document.write( "

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