document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1198460>Question 1198460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Peter has half of his investments in stock paying an 8% dividend and the other half in a stock paying 15% interest. If his total annual interest is $690, how much does he have invested? </SPAN>\n" );
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document.write( "If he has equal amounts returning 8% and 15%, then his average return is (8+15)/2 = 11.5%.<br><BR>\n" );
document.write( "The amount of his return on his investment of $x is $690:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.115x+=+690 ALIGN=MIDDLE  ALT=\"0.115x+=+690\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+690%2F0.115+=+6000 ALIGN=MIDDLE  ALT=\"x+=+690%2F0.115+=+6000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "ANSWER: $6000<br><BR>\n" );
document.write( "Formal algebra, if required....<br><BR>\n" );
document.write( "x = total invested, so 0.5x returning 8% and 0.5x returning 15%:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.08%28.5x%29%2B.15%28.5x%29=690 ALIGN=MIDDLE  ALT=\".08%28.5x%29%2B.15%28.5x%29=690\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.04x%2B.075x=690 ALIGN=MIDDLE  ALT=\".04x%2B.075x=690\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.115x=690 ALIGN=MIDDLE  ALT=\".115x=690\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=690%2F.115+=+6000 ALIGN=MIDDLE  ALT=\"x=690%2F.115+=+6000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );