SOLUTION: I know how to convert down but I am not understanding how to convert this up. Q: convert 500 feet per second to kilometers per hour Can you help? Deb

Algebra ->  Conversion and Units of Measurement -> SOLUTION: I know how to convert down but I am not understanding how to convert this up. Q: convert 500 feet per second to kilometers per hour Can you help? Deb      Log On


   

Question 281512: I know how to convert down but I am not understanding how to convert this up.
Q: convert 500 feet per second to kilometers per hour
Can you help?
Deb
Answer by Mathematicians(84) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
You definitely want to change the units so:
Q: convert 500 feet per second to kilometers per hour
500+foot%2Fsecond
There are 60+second%2Fminute and 60+minute%2Fhour
so +500+foot%2Fsecond+%2A+60+second%2Fminute
You will see that you have a second on the numerator and denominator, therefore they get canceled and now you have minutes on bottom:
+500+foot%2Fsecond+%2A+60+second%2Fminute+%2A+60+minute%2Fhour+=+1800000+foot+%2F+hour
We have the hour units done, we still need the to convert feet into kilometers:
There are 0.3048 meter / foot and 0.001 kilometer / meter
Similar thing happens: 1800000 foot / hour * .3048 meter / foot * .001 kilometer / meter = 548.64 kilometers/hour
548.64 kilometers/hour
Sorry, the formula program is giving me errors when I use decimal int he expressions, I had to remove them later on