document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=928256>Question 928256</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Eduardo takes 3 hours longer to complete a job than Bill. If they can complete the job together in 4 hours, find how long it takes each person to complete the job alone.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #563571 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=563571\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r = w/t<BR>\n" );
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document.write( "x = ed rate<BR>\n" );
document.write( "y = bill rate<BR>\n" );
document.write( "t = bill time per job<BR>\n" );
document.write( "---<BR>\n" );
document.write( "individual rates:<BR>\n" );
document.write( "y = 1/t<BR>\n" );
document.write( "x = 1/(t + 3)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "together rate:<BR>\n" );
document.write( "x + y = 1/4<BR>\n" );
document.write( "1/(t + 3) + 1/t = 1/4<BR>\n" );
document.write( "t/t(t + 3) + (t + 3)/t(t + 3) = 1/4<BR>\n" );
document.write( "t + (t + 3) = (1/4)t(t + 3)<BR>\n" );
document.write( "2t + 3 = (1/4)tt + (3/4)t<BR>\n" );
document.write( "(1/4)tt + (3/4)t - 2t - 3 = 0<BR>\n" );
document.write( "(1/4)tt + (3/4)t - (6/4)t - 3 = 0<BR>\n" );
document.write( "(1/4)tt - (3/4)t - 3 = 0<BR>\n" );
document.write( "0.25tt - 0.75t - 3 = 0<BR>\n" );
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document.write( "the above quadratic equation is in standard form, with a=0.25, b=-0.75 and c=-3<BR>\n" );
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document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:<BR>\n" );
document.write( "0.25 -0.75 -3<BR>\n" );
document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php<BR>\n" );
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document.write( "the quadratic has two real roots at:<BR>\n" );
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document.write( "t = 5.27491722<BR>\n" );
document.write( "t = -2.27491722<BR>\n" );
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document.write( "the negative root doesn't fit the problem statement, so use the positive root:<BR>\n" );
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document.write( "answer:<BR>\n" );
document.write( "bill time per job = 5.3 hours<BR>\n" );
document.write( "ed time per job = 8.3 hours<BR>\n" );
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document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php </SPAN>\n" );
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