document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=101792>Question 101792</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131492624/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I can't seem to figure this one out. Can you please help me.<BR>\n" );
document.write( "You are choosing between two long-distance telephone plans. Plan A has a monthly fee of $15 with a charge of $.08 per minute for all long-distance calls. Plan B has a monthly fee of $3 with a charge of $.12 per minute for all long distance calls.\r<BR>\n" );
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document.write( "a. For how many minutes of long-distance calls will the costs for the two plans be the same? What will be the cost for each plan?\r<BR>\n" );
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document.write( "b. If you make approximately 15 long-distance calls per month, each averaging 30 minutes, which plan should you select? Explain your answer. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #73999 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=73999\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Plan A has a monthly fee of $15 with a charge of $.08 per minute for all long-distance calls. Plan B has a monthly fee of $3 with a charge of $.12 per minute for all long distance calls. <BR>\n" );
document.write( "a. For how many minutes of long-distance calls will the costs for the two plans be the same? What will be the cost for each plan? <BR>\n" );
document.write( "Plan A cost: A(x)= 15+0.08x<BR>\n" );
document.write( "Plan B cost: B(x)= 3 + 0.12x<BR>\n" );
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document.write( "EQUATION:<BR>\n" );
document.write( "If Plan A costs the same as Plan B:<BR>\n" );
document.write( "15+0.08x = 3 + 0.12x<BR>\n" );
document.write( "12 = 0.04x<BR>\n" );
document.write( "x = 300 minutes (The plans will cost the same when each covers 300 minutes)<BR>\n" );
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document.write( "b. If you make approximately 15 long-distance calls per month, each averaging 30 minutes, which plan should you select? Explain your answer.\r<BR>\n" );
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document.write( "15*30 = 450 minutes<BR>\n" );
document.write( "Cost for Plan A: A(450)= 15+0.08*450 =$51<BR>\n" );
document.write( "Cost for Plan B: B(450)=  3+0.12*450 =$57<BR>\n" );
document.write( "You can make the choice and explain your reasons.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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