document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=663303>Question 663303</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi I need help on knowing how to solve for word problems using systems; Ex: if 4 apples and 2 oranges equals $1 and 2 apples and 3 oranges equals $0.70, how much does each apple and each orange cost? ... Thanks!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #412711 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=412711\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a very common type of problem.<BR>\n" );
document.write( "Let A be the number of apples and O be the number of oranges.<BR>\n" );
document.write( "You are told<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4A+%2B+2O+=+100 ALIGN=MIDDLE  ALT=\"4A+%2B+2O+=+100\"   DISABLED_style= \"max-width:90%; height:auto;\" > we are using cents here instead of dollars<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+3O+=+70 ALIGN=MIDDLE  ALT=\"2A+%2B+3O+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "You have two equations and two unknowns. So you can solve this one<BR>\n" );
document.write( "Now you can use your favorite method to solve.<BR>\n" );
document.write( "Let's use substitution<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4A+%2B+2O+=+100 ALIGN=MIDDLE  ALT=\"4A+%2B+2O+=+100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+O+=+50 ALIGN=MIDDLE  ALT=\"2A+%2B+O+=+50\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+=+50+-+2A ALIGN=MIDDLE  ALT=\"O+=+50+-+2A\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Now use that and plug it into the second equation as follows<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+3O+=+70 ALIGN=MIDDLE  ALT=\"2A+%2B+3O+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+3%2A%2850-2A%29+=+70 ALIGN=MIDDLE  ALT=\"2A+%2B+3%2A%2850-2A%29+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+150+-+6A+=+70 ALIGN=MIDDLE  ALT=\"2A+%2B+150+-+6A+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-4A+=+-80 ALIGN=MIDDLE  ALT=\"-4A+=+-80\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A+=+20 ALIGN=MIDDLE  ALT=\"A+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > so an apple is 20 cents<BR>\n" );
document.write( "If an apple it 20 then plug in to find the cost of an orange<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2A20+%2B+2O+=+100 ALIGN=MIDDLE  ALT=\"4%2A20+%2B+2O+=+100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=80+%2B+2O+=+100 ALIGN=MIDDLE  ALT=\"80+%2B+2O+=+100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2O+=+20 ALIGN=MIDDLE  ALT=\"2O+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=O+=+10 ALIGN=MIDDLE  ALT=\"O+=+10\"   DISABLED_style= \"max-width:90%; height:auto;\" > oranges are a dime. Go not sure what store you shop at, but fruit is a steal :)\r<BR>\n" );
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document.write( "Check you answer using the second equation. Does<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2A+%2B+3O+=+70 ALIGN=MIDDLE  ALT=\"2A+%2B+3O+=+70\"   DISABLED_style= \"max-width:90%; height:auto;\" >???<BR>\n" );
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