document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843129>Question 843129</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If 10 people take 1 hour to complete the construction of a wall then how many people are required complete the same wall in 450 seconds? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #507944 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=507944\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the amount of time to construct the wall is equal to 3600 seconds.<BR>\n" );
document.write( "this is because 3600 seconds is equivalent to one hour.\r<BR>\n" );
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document.write( "if 10 people worked on the wall, then each person completed 1/10th of the wall in one hour, assuming that they all worked at exactly the same rate.\r<BR>\n" );
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document.write( "the formula to use is RT = Q<BR>\n" );
document.write( "R = the rate of the 10 people working together.<BR>\n" );
document.write( "RT = Q becomes R*3600 = 1<BR>\n" );
document.write( "R = 1/3600<BR>\n" );
document.write( "since 10 people worked at that rate, then the combined rate is really equal to 10/3600.<BR>\n" );
document.write( "divide that by 10 to get the contibution of each person and you get that each person worked at the rate of 1/36000 of the wall in one second.\r<BR>\n" );
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document.write( "now we want to determine how many people are required to complete the wall in 450 seconds.\r<BR>\n" );
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document.write( "the same formula is used.\r<BR>\n" );
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document.write( "RT = 1\r<BR>\n" );
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document.write( "T becomes 450 seconds.\r<BR>\n" );
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document.write( "we get R * 450 seconds = 1\r<BR>\n" );
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document.write( "since the rate that one person works is 1/36000, then the rate that x people work is x/36000.\r<BR>\n" );
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document.write( "the formula becomes:\r<BR>\n" );
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document.write( "RT = Q becomes:\r<BR>\n" );
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document.write( "x/36000 * 450 = 1\r<BR>\n" );
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document.write( "we multiply both sides of this equation by 36000 and divide both sides of this equation by 450 to get:\r<BR>\n" );
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document.write( "x = 36000 / 450 which is equal to 80.\r<BR>\n" );
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document.write( "it would require 80 people, all working at the same rate, to construct the wall in 450 seconds.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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