Question

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

Answer 1

Answer:

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

Step-by-step explanation:

Here is the complete question:

It is believed that about $\frac{3}{4}$ 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:

$\frac{3}{4} d$

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:

$\frac{3}{4} (28)$

Now simplify the above expression:

$\frac{3}{4} (28)$ = $\frac{3*28}{4}$ = $\frac{84}{4}$ = $21$

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