Question

Use the expression you wrote to predict the number of dreams that include people you know out of 28

Answer 1

the number of dreams that include people you know out of 28 is 21

Explanation:

Here is the complete question:

It is believed that about
`(3)/(4)` of our dreams involve people that we know.

So the expression to describe the number of dreams that feature people you know if you have "d" dreams is:

`(3)/(4) d`

Now using the above expression we can predict number of dreams that include people you know out of 28. Here 28 represents number of dreams i.e. "d". So expression becomes:

`(3)/(4) (28)`

Now simplify the above expression:

`(3)/(4) (28)` =
`(3*28)/(4)` =
`(84)/(4)` =
`21`

Hence the number of dreams that include people you know out of 28 is 21