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anonymous

  • one year ago

At the farmer's market, there is a scale that measures the weight of fruit and vegetables. The needle is 16 cm long, and it rotated 68° when Danielle placed six oranges on it. How far did the needle travel as it rotated? How would I do this one?

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  1. DrummerGirl3
    • one year ago
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    he needle is the radius of a circle. The distance it rotates is a portion of the circumference. Since there are 360° in a circle, multiply this by 68/360. The answer is then found as 16*2π*(68/360). That comes out somewhere below 20cm. Do it yourself in Excel to get the real answer. Doesn't that give you 18.98918226 (which is really 19cm)?

  2. anonymous
    • one year ago
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    So multiply the radius by 68/360?

  3. DrummerGirl3
    • one year ago
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    exactly

  4. anonymous
    • one year ago
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    thank you :D Thats all i needed

  5. DrummerGirl3
    • one year ago
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    No Problem ;)

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