document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1162000>Question 1162000</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use a system of two equations in two variables to solve the problem.\r<BR>\n" );
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document.write( "At a store, ice cream cones cost $1.80 and sundaes cost $3.30. One day a total of 158 cones and sundaes were sold, and the receipts totaled $389.40. How many cones were sold?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #785666 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=785666\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use a system of two equations in two variables to solve the problem.<BR>\n" );
document.write( "At a store, ice cream cones cost $1.80 and sundaes cost $3.30.<BR>\n" );
document.write( " One day a total of 158 cones and sundaes were sold, and the receipts totaled $389.40.<BR>\n" );
document.write( " How many cones were sold?<BR>\n" );
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document.write( "let c = no. of cones<BR>\n" );
document.write( "let s = no. of sundaes<BR>\n" );
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document.write( "c + s = 158<BR>\n" );
document.write( "1.8c + 3.3s = 389.40<BR>\n" );
document.write( "multiply the 1st equation by 3.3, subtract the 2nd equation<BR>\n" );
document.write( "3.3c + 3.3s = 512.40<BR>\n" );
document.write( "1.8c + 3.3s = 389.40<BR>\n" );
document.write( "----------------------Subtraction eliminates s, find c<BR>\n" );
document.write( "1.5c = 123.00<BR>\n" );
document.write( "c = 123/1.5<BR>\n" );
document.write( "c = 82 cones sold<BR>\n" );
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document.write( "You can confirm this yourself, there are 158 - 82 = 76 sundaes<BR>\n" );
document.write( "see if the receipt total is correct with these values </SPAN>\n" );
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