document.write( "Question 316406: Suppose that a linear cost function for an item is given by C (x) = 50x + 300. the items sell for $75 each. Find the break - even quanity. \n" ); document.write( "

Algebra.Com's Answer #226436 by Fombitz(32388) $\"\"$ $\"About$

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At breakeven, revenue R(x) equals cost C(x).
\n" ); document.write( " $\"+R%28x%29=75x\"$
\n" ); document.write( " $\"+C%28x%29=50x%2B300\"$
\n" ); document.write( " $\"+75x=50x%2B300+\"$
\n" ); document.write( " $\"25x=300\"$
\n" ); document.write( " $\"x=12\"$
\n" ); document.write( "12 units need to be sold. \n" ); document.write( "

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