Question

The ratio of the number of boys to the number
of girls in a school band is 13:3. There are 30
fewer girls than boys.
(a) How many boys are there?
(b) How many girls are there?​

Answer 1

Answer:

39 boys and 9 girls

Step-by-step explanation:

let number of boys be 13x

let number of girls be 3x

as there are 30 fewer girls than boys

3x+30=13x

30=13x-3x

30=10x

30/10=x

3=x

therefore 13x=13×3=39

3x=3×3=9

therefore, there are 39 boys and 9 girls.

please mark this answer as brainliest