document.write( "Question 234954: At 12:22 a clock's hour hand is how many degrees away from a vertical position?
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document.write( "a) 10° b) 11° c) 12° d) 21° e) 22° \n" );
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Algebra.Com's Answer #173164 by jsmallt9(3758)![]() ![]() ![]() You can put this solution on YOUR website! First, we'll figure out where the hour hand is pointing. As a full hour passes, from 12 o;clock to 1 o'clock, the hour hand moves from the 12 to the 1 (i.e. \"5 minutes\" on the clock). In 22 minutes the hour hand will move: \n" ); document.write( " \n" ); document.write( "Since 11/6 is almost 2, the hour hand will be pointing at almost the 2 minute mark on the clock. \n" ); document.write( "What angle is the hour hand at if it is pointing at 11/6 minutes? Well a whole circle is 360 degrees and a whole hour is 60 minutes. So we can set up a proportion to solve the problem. \n" ); document.write( "Let x = the angle of the hour hand. Then \n" ); document.write( " \n" ); document.write( "Now we just solve this. There are many ways. One way would be be multiply both sides by 60. This eliminates the fraction-within-a-fraction on the left: \n" ); document.write( " \n" ); document.write( "Now we can multiply both sides by 6 giving: \n" ); document.write( " \n" ); document.write( "So the answer is 11 degrees (b) \n" ); document.write( " |