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Show the work on doing convert 15.9 mm to its equivalent in km

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You have got to try to remember (or learn) the prefixes used in physical units. Milli means 1/1000 or 10^-3. Kilo means 1000, or 10^3. To convert from mm to meters you have to divide by 1000 because a mm is a 1000 time smaller than a millimeter and 1 mm is 0.001 m or 10^-3 m.
To go from 1 m to 1 kilometer you have to divide again by 1000. So 1 m=10^-3 km=1 km/1000
I leave it to you to figure out how to go from mm to km. It is not difficult and you have got to learn a bit by doing your homework.
Use these two equalities
1 mm = 0.001 m
1 m = 0.001 km
So 15.9 mm =

Posted on May 29, 2011


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