document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=510638>Question 510638</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A potato at room temperature of 20°C is placed in an oven whose temperature is 210°C. An hour later the temperature of a potato is 150°C. Under the (unreasonable) assumption that the potato's temperature is always uniform, how many minutes did it take the potato to reach 50°C?(Round your answer to one decimal place.)<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 #341883 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=341883\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A potato at room temperature of 20°C is placed in an oven whose temperature is 210°C. An hour later the temperature of a potato is 150°C. Under the (unreasonable) assumption that the potato's temperature is always uniform, how many minutes did it take the potato to reach 50°C?(Round your answer to one decimal place.)<BR>\n" );
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document.write( "Two points relating time and termperature: (0,20) and (60,150)<BR>\n" );
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document.write( "Slope: (150-20)/60 = 130/60 = 13/6<BR>\n" );
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document.write( "intercept: 20<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "temp = (13/6)(time)+20<BR>\n" );
document.write( "t(50) = (13/6)*50 + 20<BR>\n" );
document.write( "t(50) = 128 1/3 degrees Centigrade<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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