document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205478>Question 1205478</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The Harnapps and the Curies are going to the Pizza Palace for dinner. The Harnapps order 3 slices of pizza and 3 colas and have a bill that totals $15. The Curies order 4 slices of pizza and 3 colas and have a bill that totals $18. Determine the best method to solve the system of equations. Then<BR>\n" );
document.write( "solve the system. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #842311 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3817)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=842311\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "If you want to use elimination, then follow tutor Theo's approach when using algebra.<BR>\n" );
document.write( "Substitution is another possibility.\r<BR>\n" );
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document.write( "Here's a way to do it with mental math.<BR>\n" );
document.write( "Both families ordered 3 colas. The only difference is that the Curies ordered 1 extra slice of pizza. So each slice of pizza must be 18-15 = 3 dollars, since we just look at the difference of their bills. \r<BR>\n" );
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document.write( "Harnapps:<BR>\n" );
document.write( "3 slices = 3*3 = 9 dollars<BR>\n" );
document.write( "15-9 = 6 dollars spent on colas, so each cola is 6/3 = 2 dollars\r<BR>\n" );
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document.write( "Curies:<BR>\n" );
document.write( "4 slices = 4*3 = 12 dollars<BR>\n" );
document.write( "18 - 12 = 6 dollars spent on colas, so each cola is 6/3 = 2 dollars\r<BR>\n" );
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document.write( "Answer:<BR>\n" );
document.write( "Each pizza slice costs $3<BR>\n" );
document.write( "Each cola costs $2<BR>\n" );
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