Kevin has 9 stamps that have the image of a boat on them.

If this is the 30% of the total collection of stamps Kevin has, how many stamps does he have?

0.3x = 9

x = 9/0.3

x = 30

30

I was good at math but being out of school for 14 years my brain hurts

To find out how many stamps Kevin has in total, we can use the concept of percentages.

Step 1: Let's assume the total number of stamps Kevin has is represented by "x."

Step 2: We know that 9 stamps represent 30% of the total collection. So, we can set up a proportion:

9 is to x as 30 is to 100

Step 3: Now we can cross-multiply and solve for "x":

(9 * 100) = (30 * x)

900 = 30x

Step 4: Divide both sides by 30:

900/30 = x

30 = x

Therefore, Kevin has a total of 30 stamps.