Hallo! HELP!!! I have a problem… here it is!

Question

Write the ratio as a unit rate.
286 miles in 5 1/2 hours.

ALSO I need a little help with dis too.
Which typing time is the fastest?
320 words in 8 minutes
600 words in 12 minutes
350 words in 10 minutes
225 words in 5 minutes

How do you solve this?
How do you check?
Some people say you divide. Why?

Answer 1

For your second question, yes, you divide to find the fastest typing time.
320 divided by 8
600 divided by 12
etc.

Answer 2

What about the first question?

Answer 3

A math tutor may correct me, but I think the first thing to do is get rid of the fraction and express that number in a decimal format. What does 5 1/2 equal in decimals?

Answer 4

286 miles in 5 1/2 hours
= 286mi / 5.5hr = 286/5.5 mi/hr

Answer 5

I think you should find out a number that 5, 8, 10, and 12 have a multiple of like I think 60 and find out words in 60 minutes
_____________________________
225 words- 5 minutes
450 words- 10 minutes
900 words- 20 minutes
2,700 words- 60 minutes