document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=515509>Question 515509</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi..trying to help my son on his homework, and running into a bit of a wall on this one. I can intuit my way to the correct answer, but can't show how to get there algebraically.\r<BR>\n" );
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document.write( "\"Samantha invested her $10,000 savings at two different banks for one year. She put part of the money in Bank A which paid 8% interest. The rest of the money was invested at 7% at Bank B.At the end of the year she had accumulated $735 in interest. How much money did she invest at Bank A? Hint:7% interest on an unknown amount of money is .07n.\"\r<BR>\n" );
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document.write( "I can get the answer (6500$ at 7%, %3500 at 8%), but I can't see how to write out the equation. Any help you can provide would be greatly appreciated, as we've spent three hours on this assignment already! :)  Thank you again, we both greatly appreciate any time you give us!!!\r<BR>\n" );
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document.write( "-greg and gabe scott </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344009 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=344009\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Samantha invested her $10,000 savings at two different banks for one year. She put part of the money in Bank A which paid 8% interest. The rest of the money was invested at 7% at Bank B.At the end of the year she had accumulated $735 in interest. How much money did she invest at Bank A? <BR>\n" );
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document.write( "Using one variable.<BR>\n" );
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document.write( "Interest Equation:<BR>\n" );
document.write( "Interest + Interest = Interest <BR>\n" );
document.write( "0.08x + 0.07(10,000-x) = 735<BR>\n" );
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document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "8x + 7*10,000 - 7x = 73500<BR>\n" );
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document.write( "x = 73500-70,000<BR>\n" );
document.write( "x = $3500 (Amount invested at Bank A)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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