document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=98403>Question 98403</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes), as shown in the figure below. The remaining credit after 23 minutes of calls is $21.78 , and the remaining credit after 57 minutes of calls is $17.02 . What is the remaining credit after 87 minutes of calls? <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #71564 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley71><B>checkley71(8403)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley71><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=71564\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (57-23)M=17.02-21.78<BR>\n" );
document.write( "34M=-4.76<BR>\n" );
document.write( "M=-4.76/34<BR>\n" );
document.write( "M=-.14 PER MINUTE USED<BR>\n" );
document.write( "87-57=30 MINUTES USED. THEREFORE THE REDUCTION IN CREDIT IS:<BR>\n" );
document.write( "30*-.14=-4.20<BR>\n" );
document.write( "17.02-4.20=$12.82 CREDIT REMAINING ON THE CARD AFTER 87 MINUTES ARE USED. </SPAN>\n" );
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