OpenStudy (anonymous):

4 years ago
OpenStudy (anonymous):

4 years ago
OpenStudy (anonymous):

There is the question.

4 years ago
OpenStudy (anonymous):

@Psymon

4 years ago
OpenStudy (anonymous):

@Luigi0210

4 years ago
OpenStudy (psymon):

Looks liek I didn't pay attention, it only wanted conversion factors, haha. Well, you can look and see what I used and get the answer. whoops. If you care about how you would get the answer you can keep reading, though xD Basically you multiply by conversion factors until you end up with the units you want. Changing millimeters to meters is easy, but Ill still show the process of that part. So as of now, we have 620mm per minute. Ill write that as a fraction, making sure I keep track of which units I have: $\frac{ 620mm }{ 1m }$. So like I said, now we multiply by various conversion factors. For example, a conversion factor would be 1 meter = 1000 mm. These conversion factors we write as fractions and then multiply by what we have. So we would have 620/1 times 1/1000. Now, we have to multiply these fractions in the right way. We want to have millmeters to be on top and on bottom, that way they cancel out. This means this is the multiplication I have to do: $\frac{ 620mm }{ 1minute }*\frac{ 1meter }{ 1000mm }= \frac{ .620meters }{ 1minute }$ Now we just need to convert minutes to hours. As we know, there are 60 mins in 1 hour. So 60/1 is the conversion factor we will multiply by. Again, we want to have minutes on top and on bottom, that way the units will cancel out and leave what we want. So now we do this multiplication: $\frac{ .620meters }{ 1\min }*\frac{ 60\min }{ 1hr }= \frac{ 37.2meters }{ 1hr }$ So now that everything has canceled and we have worked our way to meters and hours, we can say that our answer is 37.2 meters per hour.

4 years ago
OpenStudy (anonymous):

thnx

4 years ago
OpenStudy (anonymous):

wait so I dont get it. 37.2 meters per hour have to do with a,b,c, and d

4 years ago
OpenStudy (psymon):

I put it at the top message. I worked the problem but realized I didn't need to. But within the problem you can see the conversion factors I used to answer your question.

4 years ago
OpenStudy (anonymous):

im thankful of your paragraph. Im sorry but i dont understand how to do it. Can ou tell me the answer.y

4 years ago
OpenStudy (psymon):

The conversions are in bold :/

4 years ago
OpenStudy (anonymous):

ik but i dont get it. the conversions you made dont look anything like a b c d

4 years ago
OpenStudy (anonymous):

can you just tell me

4 years ago
OpenStudy (psymon):

$\frac{ 1meter }{ 1000mm } or \frac{ 1mm }{ .001meters }$Either or. I just used the left one, I guess the problem wants the right one. SO yeah, my first step I could've done is: $\frac{ 620mm }{ 1\min }*\frac{ .001m }{ 1mm }$ Same thing

4 years ago