document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=339671>Question 339671</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You are selling cups of coffee at a sporting event. Your sales records show that when the coffee is priced at $3 per cup, you sell 650 cups. When the coffee is prices at $2.50, you sell 930 cups.\r<BR>\n" );
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document.write( "Using that information, write a linear equation for the relationship between price (p) and quantity (q) sold. Your starting point is:  q = mx + b, which is the slope intercept form of an equation, and using the two ordered pairs you find m and b. Make sure your answer here is an equation\r<BR>\n" );
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document.write( "Using the equation in #5 above, at what price of the coffee with you sell 800 cups? Round your answer to the nearest nickel, Use the formula Q=mP+b </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #243321 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=243321\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You are selling cups of coffee at a sporting event. Your sales records show that when the coffee is priced at $3 per cup, you sell 650 cups. When the coffee is prices at $2.50, you sell 930 cups.<BR>\n" );
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document.write( "(3,650);(2.5,*930)<BR>\n" );
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document.write( "Using that information, write a linear equation for the relationship between price (p) and quantity (q) sold. Your starting point is: q = mp + b, which is the slope intercept form of an equation, and using the two ordered pairs you find m and b. Make sure your answer here is an equation<BR>\n" );
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document.write( "m = (930-650)/(2.5-3) = 280/-0.5 = -560<BR>\n" );
document.write( "Intercept ?<BR>\n" );
document.write( "650 = -560*3 + b<BR>\n" );
document.write( "b = 2330<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "q(p) = -560p + 2330<BR>\n" );
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document.write( "Using the equation in #5 above, at what price of the coffee with you sell 800 cups? Round your answer to the nearest nickel, Use the formula Q=mP+b<BR>\n" );
document.write( "800 = -560p+2330<BR>\n" );
document.write( "-560p = -1470<BR>\n" );
document.write( "p = $2.63<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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