Mrs Sullivan is helping at the school dance. The ratio of boys to girls at the dance is 4 to 5. If there are 35 girls, how many boys are there?​

Mathematics · High School · Wed Jan 13 2021

Answered on

Given that

Boys : Girls = 4:5

Girls are 35

4x+5x = 35

then 

5 is 35

so 

x = 35/5

x= 7

boys = 4*7 = 28 boys

there are 28 boys