document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1010607>Question 1010607</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "  Henry can build 2 birdhouses in 30 minutes. How many birdhouses can he build in four hours?<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 #626044 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=626044\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 30 minutes = 0.5 hours\r<BR>\n" );
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document.write( "The idea is to form a proportion and then isolate the variable.\r<BR>\n" );
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document.write( "(2 birdhouses)/(0.5 hours) = (x birdhouses)/(4 hours)\r<BR>\n" );
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document.write( "2/0.5 = x/4\r<BR>\n" );
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document.write( "2*4 = 0.5*x ... cross multiply\r<BR>\n" );
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document.write( "8 = 0.5x\r<BR>\n" );
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document.write( "0.5x = 8\r<BR>\n" );
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document.write( "0.5x/0.5 = 8/0.5 ... divide both sides by 0.5\r<BR>\n" );
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document.write( "x = 16\r<BR>\n" );
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document.write( "He can make 16 birdhouses. </SPAN>\n" );
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