document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=631371>Question 631371</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what time after 4 o'clock will the hands of the contionously drive clock from a right angle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #397587 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=397587\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At exactly 4 o'clock, the big hand is on the 12 <BR>\n" );
document.write( "and the little hand is on the 4. They span 20<BR>\n" );
document.write( "minutes out of 60, or 120 degrees out of 360 degrees<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "The minute hand will move at the rate of 360 degrees / hr<BR>\n" );
document.write( "The hour hand will move at the rate of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2F60%29%2A360+=+30+ ALIGN=MIDDLE  ALT=\"+5%2F60%29%2A360+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "degrees / hr<BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "I want the difference between them to be 90 degrees with<BR>\n" );
document.write( "the difference starting out at 120 degrees<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+ ALIGN=MIDDLE  ALT=\"+a+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the angle between the hands<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the time in hours for the angle between them<BR>\n" );
document.write( "to equal 90 degrees<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+%28+120+%2B+30t+%29+-+%28+360t+%29+ ALIGN=MIDDLE  ALT=\"+a+=+%28+120+%2B+30t+%29+-+%28+360t+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+90+=+%28+120+%2B+30t+%29+-+%28+360t+%29+ ALIGN=MIDDLE  ALT=\"+90+=+%28+120+%2B+30t+%29+-+%28+360t+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+90+=+120+-+330t+ ALIGN=MIDDLE  ALT=\"+90+=+120+-+330t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+330t+=+120+-+90+ ALIGN=MIDDLE  ALT=\"+330t+=+120+-+90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+330t+=+30+ ALIGN=MIDDLE  ALT=\"+330t+=+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+1%2F11+ ALIGN=MIDDLE  ALT=\"+t+=+1%2F11+\"   DISABLED_style= \"max-width:90%; height:auto;\" > hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F11%2A60+=+5+%2B+5%2F11+ ALIGN=MIDDLE  ALT=\"+1%2F11%2A60+=+5+%2B+5%2F11+\"   DISABLED_style= \"max-width:90%; height:auto;\" > minutes<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2F11%2A60+=+27.27+ ALIGN=MIDDLE  ALT=\"+5%2F11%2A60+=+27.27+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "The hands will be 90 degrees apart at<BR>\n" );
document.write( "4:05 and 27 sec<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+%28+120+%2B+30t+%29+-+%28+360t+%29+ ALIGN=MIDDLE  ALT=\"+a+=+%28+120+%2B+30t+%29+-+%28+360t+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+%28+120+%2B+30%2A%281%2F11%29+%29+-+%28+360%2A%281%2F11%29+%29+ ALIGN=MIDDLE  ALT=\"+a+=+%28+120+%2B+30%2A%281%2F11%29+%29+-+%28+360%2A%281%2F11%29+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+%28+120+%2B+2.7272+%29+-++%28+32.7272+%29+ ALIGN=MIDDLE  ALT=\"+a+=+%28+120+%2B+2.7272+%29+-++%28+32.7272+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+120+-+30+ ALIGN=MIDDLE  ALT=\"+a+=+120+-+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+90+ ALIGN=MIDDLE  ALT=\"+a+=+90+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );