document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=121964>Question 121964</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780534404512/algebrahomeworkh>Fundamental of Algebraic Modeling</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> A car that sold for $15,200 had a sales tax of $912. At the same rate, how much is the tax on a car that sells for $12,000? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #89551 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=89551\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The price of a purchase (call it P) times the sales tax rate (call it R) tells you the amount of<BR>\n" );
document.write( "the tax that is paid (call it T). In equation form this is:<BR>\n" );
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document.write( "P*R = T<BR>\n" );
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document.write( "To find the rate R, let's look at the first sale. For a price (P) of $15200 the amount of the<BR>\n" );
document.write( "tax (T) was $912. Substitute these values into the equation to get:<BR>\n" );
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document.write( "15200*R = 912<BR>\n" );
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document.write( "Solve for R by dividing both sides of the equation by 15200 to get:<BR>\n" );
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document.write( "R = 912/15200 = 0.06<BR>\n" );
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document.write( "This tells you that 0.06 is the rate of the sales tax on a purchase. <BR>\n" );
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document.write( "Next you are told to find the sales tax on a car that is purchased for $12000. So substituting<BR>\n" );
document.write( "into the equation for P and R you get:<BR>\n" );
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document.write( "12000 * 0.06 = T<BR>\n" );
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document.write( "Multiply out the left side and you get that the sales tax on this purchase is:<BR>\n" );
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document.write( "720 = T<BR>\n" );
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document.write( "So for the purchase of a car costing $12,000 you should expect to pay $720 in sales tax.<BR>\n" );
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document.write( "Hope this helps you to understand the problem.<BR>\n" );
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document.write( " </SPAN>\n" );
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