Question 640531: A snail is moving at a pace of 5 cm/min (cm per mintue). How fast is the snail moving in km/hr (km per hour)? Found 3 solutions by benni1013, MathLover1, josh_jordan:Answer by benni1013(206) (Show Source):
You can put this solution on YOUR website! This is a good unit conversion problem. Ultimately the numerator needs to go from cm to km and the denominator needs to go from minutes to hours.
Conversion:
5 cm/min*60 min/1 hr*100 cm/1 m*1000 m/1 km.
Multiply:
300 km/10000 hr
Simplify:
.03 km/hr
You can put this solution on YOUR website! To solve, we need to find out how many kilometers are equal to 1 cm and how many hours equal 1 min...
1 centimeter = 1/100 of a meter
1 meter = 1/1000 of a kilometer
So, to find how many centimeters are in a kilometer, multiply 100 and 1000 and divide 1 by that answer:
100 x 1000 = 100,000
1/100,000 = .00001
Therefore 1 centimeter = .00001 kilometer
Now we need to find out how many hours are in 1 min:
1 hour = 60 min, so 1 min = 1/60 hours
All that's left to do is:
1. multiply 5 cm by .00001 = 0.00005
2. divide that answer by 1/60: .00005 x 60 = .003
FINAL ANSWER: 5 cm/min = .003 km/hr
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