Question

There are 40 boys in a computer club. The ratio of girls to boys is 2 to 5. How many girls are in the club?

Answer 1

50x2 =100

So the final box is 50x2 = 100

Explanation:

There is a pattern in this table. 5, 2, and 2. Ex. 2x5=10, 10x2 =20 on top

The pattern is the same on the bottom: 5x5 =25, 25x2=50, and 50x2 =100

So the final box is 50x2 = 100

Answer 2

Set up a proportion. 2/5 = x/40
to solve the equation first cross multiply.
x*5=40*2
x*5=80
now divide both sides by 5, 80 divided by 5 is equal to 16.
so the number of girls in the computer lab is 16.