Algebra

posted by Malicha

A tortoise is walking in the desert. It walks for 9.6 meters at a speed of
6 meters per minute. For how many minutes does it walk?

9.6/6
1.6

Please Help

  1. Ms. Sue

    Right.

  2. Damon

    Yes, but people in science have a particular approach,
    Type the units in such a manner that the ones you do not want cancel

    we can use 6 meters / 1 minute
    or we can use 1 minute / 6 meters
    (both are the same top and bottom, just different units. For this problem one minute IS 6 meters :)

    we have
    9.6 meters
    so
    multiply by 1 min/6 meters

    9.6 meters (1 min/6 meters)
    = 1.6 min

  3. Malicha

    Thank you

  4. Damon

    You are welcome.

  5. Steve

    Damon makes a good point. You know that you can always multiply by 1 without changing anything.

    If 6 meters = 1 minute, then

    6m/1min = 1
    1min/6m = 1

    Those "conversion factors" are just different ways of writing 1! If you pick the correct expression, the unwanted units cancel out.

  6. Damon

    It is particularly helpful if you have a whole string of them.

  7. help

    can we be freinds

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