document.write( "Question 188391: At what time between 2 and 3 o'clock are the hands of the clock opposite each other?\r
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Algebra.Com's Answer #141244 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
The minute hand and the hour hand are each going in
\n" ); document.write( "a circle at a certain speed in degrees/hr
\n" ); document.write( "Between 2 and 3 o'clock, the hour hand covers 5 minutes
\n" ); document.write( "of the 60 minutes on the clock face
\n" ); document.write( "\"5%2F60+=+1%2F12\", so if the whole face is 360 degrees
\n" ); document.write( "\"%281%2F12%29%2A360+=+30\" degrees
\n" ); document.write( "When the hour hand moves 30 degrees, the minute and
\n" ); document.write( "goes all the way around, or 360 degrees. That's 12 times
\n" ); document.write( "faster than the hour hand
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\n" ); document.write( "To solve the problem, I ask the question:
\n" ); document.write( "If the hour hand moves a certain number of degrees be
\n" ); document.write( "tween 2 and 3, what time is it when the minute hand is
\n" ); document.write( "at the hour hand's position + 180 degrees? That would put
\n" ); document.write( "them directly opposite eachother.
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\n" ); document.write( "Let \"t\"= the elapsed time in hours after 2 o'clock when the hands
\n" ); document.write( "are opposite eachother
\n" ); document.write( "\"360%2F1\"= the rate of travel of the minute hand in degrees/ hr
\n" ); document.write( "\"30%2F1\" = the rate of travel of the hour hand in degrees/hr
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\n" ); document.write( "Reading from 12 and going clockwise, the hour hand is at the 2
\n" ); document.write( "which is \"2%2F12+=+1%2F6\" of the 360 degrees
\n" ); document.write( "\"%281%2F6%29%2A360+=+60\" degrees
\n" ); document.write( "So, when the hands are opposite the hour hand is at
\n" ); document.write( "\"60+%2B+%2830%2F1%29%2At\"
\n" ); document.write( "I want the minute hand to be this position + 180 degrees.
\n" ); document.write( "I also know that \"360%2F1\"{ is the minute's hand rate of travel)
\n" ); document.write( "so, I can write
\n" ); document.write( "\"60+%2B+%2830%2F1%29%2At+%2B+180+=+%28360%2F1%29%2At\"
\n" ); document.write( "\"330t+=+240\"
\n" ); document.write( "\"t+=+24%2F33\"
\n" ); document.write( "\"t+=+.7273\"hrs
\n" ); document.write( "\"t+=+.7273%2A60\"min
\n" ); document.write( "\"t+=+43.64\"min
\n" ); document.write( "and
\n" ); document.write( "\".64%2A60+=+38\"sec
\n" ); document.write( "The hands are opposite eachother at 43 min and 38 sec past 2 o'clock
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\n" ); document.write( "check answer:
\n" ); document.write( "In degrees the hour hand has moved
\n" ); document.write( "\".7273%2A%2830%2F1%29+=+21.82\" degrees
\n" ); document.write( "In degrees, the minute hand has moved
\n" ); document.write( "\".7273%2A%28360%2F1%29+=+261.82\" degrees
\n" ); document.write( "\"261.82+-+21.82+=+240\" degrees
\n" ); document.write( "If I subtract the 60 degree headstart the hour hand had,
\n" ); document.write( "\"240+-+60+=+180\"
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