Question

Dose any one know how to figure this problem out?

Answer 1

The first column divided by the second column will be some constant number, so find the number using the first line and figure out what the unknown entries should be.

Answer 2

cant u just give me the answers

Answer 3

That's not why I'm here, so no. Especially since this takes ~ 5 seconds. Is there something you don't understand about the process, or do you just not want to push the buttons on a calculator?

Answer 4

i don't understand any of it.

Answer 5

If you say that someone's hat size is proportional to their head circumference, that is just saying that
\[S = \alpha C\]
where S is the hat size, C is the head circumference, and alpha is just some constant. If you know someone's hat size and their head circumference, you can find alpha. Imagine, for instance, that the circumference of my head is 20 inches, and my hat size is a 7. Then
\[7 = \alpha 20 \rightarrow \alpha = \frac{7}{20}\]
So now that I know that, I can find out the hat size of somebody with a different sized head. Now let's say your head circumference is 25 inches. Then your hat size would be
\[S = \alpha C = (\frac{7}{20})25 \approx 8.75\]
so you'd be about a size 8.75.