document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=508292>Question 508292</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Christine went shopping and bought each of her nine nephews a gift, either a video costing $14.95 or a CD costing $16.88. She spent $140.34 on gifts. How many videos and CDs did she buy?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340919 by </B><A HREF=/tutors/aboutme.mpl?userid=swincher4391><B>swincher4391(1107)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=swincher4391><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=swincher4391><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=340919\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We will set up a system of equations.\r<BR>\n" );
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document.write( "Let V = number of videos bought<BR>\n" );
document.write( "Let C = number of CDs bought\r<BR>\n" );
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document.write( "We know that there are nine nephews in total, so since every nephew got either a video or CD, then the number of videos + number of CDs is also 9.\r<BR>\n" );
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document.write( "So   V + C = 9.\r<BR>\n" );
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document.write( "We also know the cost of each video and CD and how much was spent.\r<BR>\n" );
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document.write( "So   14.95V +  16.88C  = 140.34\r<BR>\n" );
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document.write( "Let's try substitution method here.\r<BR>\n" );
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document.write( "Doesn't matter which variable we solve for, so let's just solve for V.\r<BR>\n" );
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document.write( "V  = 9 - C\r<BR>\n" );
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document.write( "So where you see V in the second equation, sub in \"9-C\"\r<BR>\n" );
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document.write( "14.95(9-C) + 16.88C = 140.34\r<BR>\n" );
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document.write( "134.55 - 14.95C + 16.88C = 140.34\r<BR>\n" );
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document.write( "1.93C = 5.79\r<BR>\n" );
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document.write( "C = 3\r<BR>\n" );
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document.write( "Sub C = 3 back into either original equation, though I think I know which one you'd find is easier.\r<BR>\n" );
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document.write( "V + 3 = 9\r<BR>\n" );
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document.write( "V = 6\r<BR>\n" );
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document.write( "So we bought 6 videos and 3 CDs. <---- Answer\r<BR>\n" );
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document.write( "I hope this helped!\r<BR>\n" );
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document.write( "Please e-mail me at onlyyourmathtutor@yahoo.com if this solution did not help, or if you have further questions. </SPAN>\n" );
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