document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=392186>Question 392186</A>: <I><SPAN STYLE=\"word-break: break-all;\"> plz help me to sove this problem<BR>\n" );
document.write( "5 Fuji apples and 8 Sunkist oranges cost $17.20 while 3 Fuji apples and 9 Sunkist oranges cost<BR>\n" );
document.write( "$13.05. Find the costs of a Fuji apple and a Sunkist orange respectively </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #278354 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=278354\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5 Fuji apples and 8 Sunkist oranges cost $17.20<BR>\n" );
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document.write( "5f + 8s = 17.20<BR>\n" );
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document.write( "while 3 Fuji apples and 9 Sunkist oranges cost $13.05. <BR>\n" );
document.write( "3f + 9s = 13.05<BR>\n" );
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document.write( "Find the costs of a Fuji apple and a Sunkist orange respectively<BR>\n" );
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document.write( "Multiply thru the 1st equation by 3.<BR>\n" );
document.write( "Multiply thru the 2nd equation by 5.<BR>\n" );
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document.write( "15f + 24s = 3*17.20<BR>\n" );
document.write( "15f + 45s = 5*13.05<BR>\n" );
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document.write( "Subtract 1st from 2nd and solve for \"s\":<BR>\n" );
document.write( "21s = 13.65<BR>\n" );
document.write( "s = 0.65 or 65 cents (price of a Sunkist orange)<BR>\n" );
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document.write( "Substitute into 3f + 9s = 13.05 to solve for \"f\":<BR>\n" );
document.write( "3f + 9*0.65 = 13.05<BR>\n" );
document.write( "3f = 7.20<BR>\n" );
document.write( "f = $2.40 (price of a Fuji apple)<BR>\n" );
document.write( "============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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