document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130905>Question 1130905</A>: <I><SPAN STYLE=\"word-break: break-all;\"> dan invested a total of $4,000 in two different plans. the first plan returns 9% simple interest annually while the second plan returns 6%. if the total interest earned after one year is $286, what principal was invested in each plan? </SPAN>\n" );
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document.write( "let x = amount invested at 9%<BR>\n" );
document.write( "then 4000-x = amount invested at 6%<br><BR>\n" );
document.write( "interest from investment at 9% = .09(x)<BR>\n" );
document.write( "interest from investment at 6% = .06(4000-x)<br><BR>\n" );
document.write( "The total interest is $286:<br><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.09%28x%29%2B.06%284000-x%29+=+286 ALIGN=MIDDLE  ALT=\".09%28x%29%2B.06%284000-x%29+=+286\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "You can do the algebra to finish the problem.<br><BR>\n" );
document.write( "Note that the problem is poorly formulated, because the amounts invested at the two rates are not whole numbers of dollars, or even whole numbers of cents... not realistic! </SPAN>\n" );
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