document.write( "Question 419707: A 10-quart radiator contains a 30% concentration of antifreeze. how much of the sloution must be drained and replaced by 100% antifreeze to bring the solution up to 50% \n" ); document.write( "

Algebra.Com's Answer #853227 by josgarithmetic(39701) $\"\"$ $\"About$

You can put this solution on YOUR website!
v, to remove and replace.
\n" ); document.write( "Total finished contents is to be unchanged.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "basic setup $\"%280.3%2A10-0.3v%2B1.0v%29%2F10=0.5\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"0.3%2A10-0.3v%2Bv=0.5%2A10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"v-0.3v=0.5%2A10-0.3%2A10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"%281-0.3%29v=%280.5-0.3%2910\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"v=10%28%280.5-0.3%29%2F%281-0.3%29%29\"$
\n" ); document.write( "When this makes sense, just compute v. \n" ); document.write( "

\n" );