document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=661348>Question 661348</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello. I'm having a very hard time with problems like: \"A total of $15,000 is invested in two corporate bonds that pay 5% and 7% simple annual interest. The investor wants to earn $880 in interest per year from the bonds. How much should be invested in each bond?\" my mom got the answer, but she didn't do it algebraically.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #411600 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=411600\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Hello. I'm having a very hard time with problems like: \"A total of $15,000 is invested in two corporate bonds that pay 5% and 7% simple annual interest. The investor wants to earn $880 in interest per year from the bonds. How much should be invested in each bond?\" my mom got the answer, but she didn't do it algebraically.\r<BR>\n" );
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document.write( "Let amount invested in 5% bonds be F<BR>\n" );
document.write( "Then amount invested in 7% bonds = 15,000 – F<BR>\n" );
document.write( "Since interest desired = 880, then: .05F + .07(15,000 – F) = 880<BR>\n" );
document.write( ".05F + 1,050 - .07F = 880<BR>\n" );
document.write( ".05F - .07F = 880 – 1,050 <BR>\n" );
document.write( "- .02F = - 170<BR>\n" );
document.write( "F, or amount invested in 5% bonds = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-+170%29%2F-+.02 ALIGN=MIDDLE  ALT=\"%28-+170%29%2F-+.02\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%288500%29 ALIGN=MIDDLE  ALT=\"highlight_green%288500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Amount invested in 7% bonds = 15,000 – 8,500, or $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%286500%29 ALIGN=MIDDLE  ALT=\"highlight_green%286500%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com  </SPAN>\n" );
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