document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=328468>Question 328468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Missing ages. Molly’s age is twice Anita’s. If the sum of<BR>\n" );
document.write( "the squares of their ages is 80, then what are their ages? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #235261 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=235261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Molly's age = 2x\r<BR>\n" );
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document.write( "Anita's age = x\r<BR>\n" );
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document.write( "Sum of the square of their ages = (2x)^2 + x^2\r<BR>\n" );
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document.write( "Equate to 80 and solve for x.\r<BR>\n" );
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document.write( "(2x)^2 + x^2 = 80\r<BR>\n" );
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document.write( "4x^2 + x^2 = 80\r<BR>\n" );
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document.write( "5x^2 = 80\r<BR>\n" );
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document.write( "x^2 = 80/5\r<BR>\n" );
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document.write( "x^2 = 16\r<BR>\n" );
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document.write( "Let sqrt = square root for short\r<BR>\n" );
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document.write( "sqrt[x^2] = sqrt[16]\r<BR>\n" );
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document.write( "x = 4\r<BR>\n" );
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document.write( "Anita is 4 years old.\r<BR>\n" );
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document.write( "Molly is 2*4 years old or 8.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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