Question

What is the unit rate of `((140 w o rds) / (4 mi n))`?

Answer 1

35 words per minute.

Explanation:

Unit rate means in 1 minute.

Divide the numerator and denominator by 4 to get 35 words per minute.

Answer 2

35 word per minute

Explanation:

`color(red)("The shot cut method is based on this approach")`

This is a ratio.

The ratio is presented in the form of `("total count of words")/("time taken")`

But we need convert the 4 minutes into 1 minute.

Note that `4-:4=1`

In fraction format for multiply and divide, what you do to the bottom you do to the top.

Divide top and bottom by 4 giving

`("Word count")/("Time taken") ->140/4" " -=" "(140-:4)/(4-:4)" " =" " (color(green)(35))/1`
`" "color(red)(uarr)`
`color(red)(" This means: equivalent to")`

,~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

`color(green)(" So the unit rate is 35")`