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Math Help - Pie charts help

  1. #1
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    Question Pie charts help

    I have a pie chart showing a girl's daily activities. I have the angles and I need to calculate the time in hours.

    This girl spends 150 degrees of her time sleeping. How many hours is that (explanation included pls). Thanks
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  2. #2
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    Well if 360 degrees is 24 hours, find how many hours one degree is.

    24 hours -> 360 degrees means (24/360) hours -> degree.

    Then multiply that by 150:

    (150*24/360) -> 150 degrees.
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  3. #3
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    Quote Originally Posted by angelmt View Post
    I have a pie chart showing a girl's daily activities. I have the angles and I need to calculate the time in hours.

    This girl spends 150 degrees of her time sleeping. How many hours is that (explanation included pls). Thanks
    \frac{150}{360} \cdot 24 hours. Do you see why?
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  4. #4
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    Exclamation Confirmation

    So, if I worked it out well, the answer should approximately equal to 7 hrs.
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  5. #5
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    Quote Originally Posted by angelmt View Post
    So, if I worked it out well, the answer should approximately equal to 7 hrs.
    Your answer is not correct. Recheck your arithmetic.
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  6. #6
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    Smile Recheck

    Ok, I just rechecked the sum and the answer is 10 hrs. Hope it's correct
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  7. #7
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    Quote Originally Posted by angelmt View Post
    Ok, I just rechecked the sum and the answer is 10 hrs. Hope it's correct
    It is.
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  8. #8
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    Thumbs up

    Thanks for your help. I really appreciated it
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