## marinebaby one year ago Can someone explain to me how to do this? I have no idea where to even start! Use dimensional analysis to find the number of cm/min in 5.8 m/hr.

1. anonymous

do you need cm/min or in/hr

2. marinebaby

I think cm/min!

3. anonymous

|dw:1441721133224:dw|

4. anonymous

What do you get for an answer?

5. marinebaby

Okay I understand it a little bit more but I think its supposed to be Meter converted to Centimeter! would it still be the same ?

6. anonymous

Oh shoot sorry...yeah you can just google the conversion for m to cm

7. marinebaby

it was 580 cm! What would I do now?

8. marinebaby

Thanks for the help by the way ill be sure to give you a medal! @Savannah_Lynn13 What would I do about the hour to minutes?

9. hlilly2413

Wait, what was your original question. Are you converting 560 mi/hr to cm/minute or the other way around?

10. hlilly2413

580*

11. marinebaby

its converting 5.8 meters / hour to centimeters / minute

12. anonymous

5.8 metres * 1 hour * 100 cm 1 hour * 60 minutes * 1 metres

13. anonymous

5.8 * 100 = 580 / 60= 9.67 cm/minute

14. hlilly2413

|dw:1441721873542:dw|

15. hlilly2413

16. hlilly2413

17. hlilly2413

teacher wants* ugh. sorry

18. anonymous

Something that always helps me come up with conversion factors is this: Find out what's equal, so for example: $1 \ hour = 60 \ minutes$ And then if I want to convert something from hours to minutes, I multiply like this in that equation: $1 = \frac{ 60 \ minutes}{1 \ hour}$ So now I have a conversion factor, which is really equal to 1! Anything multiplied by 1 doesn't change, so similarly conversion factors don't change it either. So as an example, let's say I want to convert 3 hours to minutes? $3 \ hours * 1 = 3 \ hours * \frac{ 60 \ minutes}{1 \ hour}$ $3 \ \cancel{ hours} * \frac{ 60 \ minutes}{1 \cancel{ hour}} = 3*60 \ minutes = 180 \ minutes$