document.write( "Question 998384: Producing x units of tacos cost C(x)=5x+20; revenue is R(x)=15x, where both C(x) and R(x) are in dollars. How many tacos need to be sold in order to make a profit 0f $500? \n" ); document.write( "

Algebra.Com's Answer #616165 by josmiceli(19441) $\"\"$ $\"About$

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Let profit = $\"+P%28x%29+\"$
\n" ); document.write( " $\"+P%28x%29+=+R%28x%29+-+C%28x%29+\"$
\n" ); document.write( " $\"+P%28x%29+=+15x+-+%28+5x+%2B+20+%29+\"$
\n" ); document.write( " $\"+P%28x%29+=+15x+-+5x+-+20+\"$
\n" ); document.write( " $\"+P%28x%29+=+10x+-+20+\"$
\n" ); document.write( "------------------
\n" ); document.write( "given:
\n" ); document.write( " $\"+P%28x%29+=+500+\"$
\n" ); document.write( " $\"+500+=+10x+-+20+\"$
\n" ); document.write( " $\"+10x+=+520+\"$
\n" ); document.write( " $\"+x+=+52+\"$
\n" ); document.write( "52 tacos sold make a $500 profit \n" ); document.write( "

\n" );