document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=487041>Question 487041</A>: <I><SPAN STYLE=\"word-break: break-all;\"> company A charges a rate of $20 per month plus $0.05 per minute.<BR>\n" );
document.write( "company B charges a rate of $10 per month plus $0.10 per minute.<BR>\n" );
document.write( "what is the number of minutes used above which company A cost more than company B. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #332921 by </B><A HREF=/tutors/aboutme.mpl?userid=John10><B>John10(297)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=John10><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/cgi-bin/show-face.mpl?user=John10><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=332921\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Company A: C = 0.05x + 20<BR>\n" );
document.write( "Company B: C = 0.10x + 10<BR>\n" );
document.write( "If the company B cost is less than the company A:<BR>\n" );
document.write( "0.1x + 10 < 0.05x + 20<BR>\n" );
document.write( "0.1x - 0.05x < 20 -10<BR>\n" );
document.write( "0.05x < 10<BR>\n" );
document.write( " x < 10/0.05<BR>\n" );
document.write( "x < 200<BR>\n" );
document.write( "So at 200 minutes, company A cost more than company B.<BR>\n" );
document.write( "John10:) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );