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Mathematics 15 Online
OpenStudy (anonymous):

How do you write 20 miles over 4 hours as a unit rate

OpenStudy (eyust707):

Well we gotta know what they mean by "unit rate" first

OpenStudy (eyust707):

"Unit rate" is how many of something you use per 1 of another thing.

OpenStudy (eyust707):

In this case we have 20 miles per 4 hours

OpenStudy (eyust707):

To make it a unit rate we want to know how many miles per 1 hour

OpenStudy (eyust707):

So right now we have this fraction|dw:1345688868772:dw|

OpenStudy (eyust707):

we need to change that 4 into a 1

OpenStudy (eyust707):

Im pretty sure you know how to do that...

OpenStudy (eyust707):

any guesses?

OpenStudy (anonymous):

im lost

OpenStudy (eyust707):

Do you understand what we mean by unit rate?

OpenStudy (anonymous):

yes

OpenStudy (eyust707):

Okay so the goal of this question is to change "20 miles per 4 hours" into "?? miles per hour"

OpenStudy (eyust707):

If we go 20 miles in 4 hours how far did we go each hour?

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