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14 November, 14:52

1. 7/8 - 1/2

2. A security camera rotates 30° every 10 seconds. how long does it take the camera to rotate 360°?

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Answers (2)
  1. 14 November, 15:05
    0
    For your first question: find a common denominator first

    for your second question : whats 360 divided by 30?
  2. 14 November, 16:49
    0
    1.

    make denom same

    7/8 and 1/2

    8 is common

    1/2 times 4/4=4/8

    7/8-1/2=7/8-4/8=3/8

    2.

    time/degrees

    10/30=t/360

    1/3=t/360

    times both sides by 360

    120=t

    120 seconds or 2min
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