document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=427450>Question 427450</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve<BR>\n" );
document.write( "  the second angle of a triangle is 3 times as large as the first. the third angle is 55 more than the first. find all three angles. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #297264 by </B><A HREF=/tutors/aboutme.mpl?userid=John10><B>John10(297)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=John10><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=John10><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=297264\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The second angle of a triangle is 3 times as large as the first. The third angle is 55 more than the first. find all three angles.\r<BR>\n" );
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document.write( "Let x be the first angle<BR>\n" );
document.write( "    y------- second ----<BR>\n" );
document.write( "    z------- third------\r<BR>\n" );
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document.write( "We know that the total degree of a triangle is 180 degrees: x + y + z = 180 (1)\r<BR>\n" );
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document.write( "The second angle of a triangle is 3 times as large as the first: y = 3x (2)\r<BR>\n" );
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document.write( "The third angle is 55 more than the first: z = x + 55 (3)\r<BR>\n" );
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document.write( "Substitute (3) and (2) into (1) to find x:\r<BR>\n" );
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document.write( "x + (3x) + (x +55) = 180<BR>\n" );
document.write( "x + 3x + x + 55 = 180<BR>\n" );
document.write( "5x = 125<BR>\n" );
document.write( "x = 125 /5<BR>\n" );
document.write( "x = 25\r<BR>\n" );
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document.write( "Substitute x = 25 into (2) to find y and into (3) to find z:\r<BR>\n" );
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document.write( "y = 3(25) = 75\r<BR>\n" );
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document.write( "z= 25 + 55 = 80\r<BR>\n" );
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document.write( "Thus the first angle is 25, second is 75 and the third is 80\r<BR>\n" );
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document.write( "You can check by adding three angle together!!!!!!\r<BR>\n" );
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document.write( " </SPAN>\n" );
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