document.write( "Question 348292: A telephone company charges a customer $33.50 for the first 100 calls a month and 25 cents per call in excess of 100 calls. If the total bill of a customer for a certain month is $55.25, Find the total number of calls made by the customers? \n" ); document.write( "

Algebra.Com's Answer #248998 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"x\"$ = number of calls in excess of 100
\n" ); document.write( "given:
\n" ); document.write( "Total monthly bill = $\"55.25\"$
\n" ); document.write( "Amount paid @ .25/call over 100 calls = $\".25x\"$
\n" ); document.write( " $\".25x+%2B+33.5+=+55.25\"$
\n" ); document.write( " $\".25x+=+21.75\"$
\n" ); document.write( " $\"x+=+87\"$
\n" ); document.write( "The customer made 87 calls \n" ); document.write( "

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