Question

Please help A, B, C or D. After Hilary realized her clock was running 30 minutes fast, she used a knob on the clock to turn the minute hand back 30 minutes. Which describes the rotation of the minute hand?​

Answer 1

D: 180° Counterclockwise rotation

Step-by-step explanation:

A clock can be thought of as a circle made out of 60 slices of pie, each slice representing one minute. If her clock was running 30 minutes FAST that means it was at the direct opposite side of the clock, because the clock is made of 60 slices, and 30 slices would be half the pie. There are 360° in a circle, and since there is 60 slices, each slice represents 360°/60°= 6°. 30 x 6°= 180°. The rotation would be COUNTER clock wise because the clock is AHEAD, and needs to go back in time; thus going counter to the natural rotation of a clock. 180° counterclockwise.

Answer 2

what's up? it would be D, 180 counterclockwise

a clock consists of 60 minutes, and it is a circle. so 60 minutes would be a full 360 degrees while 30 minutes would be 180 degrees. if it is running fast, in order to set it BACK you'd be going counterclockwise. forward would be clockwise