document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329842>Question 329842</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Wireless phone company A charges $20 per month plus $0.12 per minute. Wireless phone company B charges $50 per month plus $0.06 per minute. For how many minutes of calls will the monthly bills be the same?<BR>\n" );
document.write( "(A) 80 minutes<BR>\n" );
document.write( "(B) 100 minutes<BR>\n" );
document.write( "(C) 160 minutes<BR>\n" );
document.write( "(D) 250 minutes<BR>\n" );
document.write( "(E) 500 minutes </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237173 by </B><A HREF=/tutors/aboutme.mpl?userid=privani><B>privani(34)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=privani><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=237173\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assuming:<BR>\n" );
document.write( "monthly bill = M and minutes of call = m, form equations:\r<BR>\n" );
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document.write( "M=20+0.12m ....(1)<BR>\n" );
document.write( "M=50+0.06m ....(2)\r<BR>\n" );
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document.write( "So,<BR>\n" );
document.write( "M = 20 + 0.12m = 50 + 0.06m<BR>\n" );
document.write( "    0.12m - 0.06 = 50 - 20<BR>\n" );
document.write( "    0.06m = 30<BR>\n" );
document.write( "    m = 30/0.06<BR>\n" );
document.write( "    m = 500\r<BR>\n" );
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document.write( "Answer: (E) 500 minutes </SPAN>\n" );
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