document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=398730>Question 398730</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have two problems .. please help..\r<BR>\n" );
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document.write( "Find the measure of each angle A=(x+10), b=(x-10), c=(3x-50)\r<BR>\n" );
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document.write( "and\r<BR>\n" );
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document.write( "RI invested some money at 9% and $100 less than at 7%.  Her total annual interest was $81.  How much did she invest at each rate? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #282457 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=282457\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find the measure of each angle A=(x+10), b=(x-10), c=(3x-50)<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "x+10 + x-10 + 3x-50 = 180<BR>\n" );
document.write( "5x-50 = 180<BR>\n" );
document.write( "5x = 230<BR>\n" );
document.write( "x = 46<BR>\n" );
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document.write( "A = x+10 = 56 degrees<BR>\n" );
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document.write( "B = x-10 = 36 degrees<BR>\n" );
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document.write( "C = 3x-50 = 3*46-50 = 138-50 = 88 degrees<BR>\n" );
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document.write( "and <BR>\n" );
document.write( "RI invested some money at 9% and $100 less than at 7%. Her total annual interest was $81. How much did she invest at each rate?<BR>\n" );
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document.write( "Interest Equation:<BR>\n" );
document.write( "0.09x + 0.07(x-100) = 81<BR>\n" );
document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "9x + 7x-700 = 8100<BR>\n" );
document.write( "16x = 8800<BR>\n" );
document.write( "x = $550 (amt. invested at 9%)<BR>\n" );
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document.write( "x-100 = $450 (amt. invested at 7%)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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