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.

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- marinebaby

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- anonymous

do you need cm/min or in/hr

- marinebaby

I think cm/min!

- anonymous

|dw:1441721133224:dw|

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## More answers

- anonymous

What do you get for an answer?

- 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 ?

- anonymous

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

- marinebaby

it was 580 cm! What would I do now?

- 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?

- hlilly2413

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

- hlilly2413

580*

- marinebaby

its converting 5.8 meters / hour to centimeters / minute

- anonymous

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

- anonymous

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

- hlilly2413

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- hlilly2413

Do the math and your answer will come out to cm/minute.

- hlilly2413

If your teacher is wants your answer in significant figures pay attention to how many places after the decimal you record your answer to.

- hlilly2413

teacher wants* ugh. sorry

- 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?
\[3 \ hours * 1 = 3 \ hours * \frac{ 60 \ minutes}{1 \ hour} \]
\[ 3 \ \cancel{ hours} * \frac{ 60 \ minutes}{1 \cancel{ hour}} = 3*60 \ minutes = 180 \ minutes \]

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