document.write( "Question 398824: A discount pass for a bridge cost $30 a month. The toll for the bridge is normally $5, but it is reduced to $3.50 for people who have purchased the discount pass. Determine the number of times in a month the bridge must be crossed so that the total monthly cost without the discount pass is the same as the total monthly cost with the discount pass. \n" ); document.write( "

Algebra.Com's Answer #282501 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"n\"$ = the number of times in a month the
\n" ); document.write( "bridge is crossed.
\n" ); document.write( "Let $\"C\"$ = monthly cost
\n" ); document.write( "With pass:
\n" ); document.write( " $\"C+=+30+%2B+3.5n\"$
\n" ); document.write( "without pass:
\n" ); document.write( " $\"C+=+5n\"$
\n" ); document.write( "-----------
\n" ); document.write( " $\"30+%2B+3.5n+=+5n\"$
\n" ); document.write( " $\"1.5n+=+30\"$
\n" ); document.write( " $\"n+=+20\"$
\n" ); document.write( "The bridge must be crossed 20 times to make
\n" ); document.write( "the monthly costs equal \n" ); document.write( "

\n" );