document.write( "Question 725449: Proportions: Mr. Freidmans new car has a cooling system that requires 16 quarts of coolant. The cooling system needs 1 quart pf antifreeze for every 2 quarts of water to protect against winter freeze up. How much water should be drained from the cooling system and replaced with antifreeze to protect against freeze up? \n" ); document.write( "

Algebra.Com's Answer #444183 by KMST(5328) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x\"$ = volume of water drained and replaced with antifreeze, in quarts
\n" ); document.write( " $\"x%2F%2816-x%29=1%2F2\"$ is the ratio of antifreeze to water
\n" ); document.write( " $\"x%2F%2816-x%29=1%2F2\"$ --> $\"2x=16-x\"$ \"equating the cross products\", or multiplying both sides of the equal sign times $\"2%2816-x%29\"$
\n" ); document.write( "
\n" ); document.write( " $\"2x=16-x\"$ --> $\"2x%2Bx=16-x%2Bx\"$ --> $\"3x=16\"$ --> $\"x=16%2F3=5%261%2F3\"$
\n" ); document.write( "You need to drain $\"5%261%2F3\"$ quarts of water and replace them with antifreeze. \n" ); document.write( "

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