Question

I have a question, help me to solve this:

A school sends 20 female members and 10 male members of the red society to provide first aid during the national day celebration. the number of male members who wear a hat is 6. if a member is chosen at random, the probability that he/she wears a hat is 3/10.
calculate the number of female members who wear a hat.

Answer 1

Figure out the total number of people who wear a hat.

Answer 2

how can i figure that?

Answer 3

12

Answer 4

The total number of people times the probability a person wears a hat.

Answer 5

it's not 12

Answer 6

How about this: \[
\frac{6+x}{10+20}=\frac{3}{10}
\]

Answer 7

x = 3

Answer 8

The total number of people who wear hats is \(6+x\)
Where \(x\) is number of females with hat.

Answer 9

Yes.

Answer 10

thanks wio