The ratio of boys to girls in a class is 7 to 11. if there are a total of 49 boys in the class , then how many boys and girls are there altogether ?

There are 77 girls in the class when there are 49 boys.

126 students

Step-by-step explanation:

Boys : Girls

7 : 11

How do you get from 7 to 49?

49 ÷ 7 = 7

Therefore, you should multiply the number of boys by 7.

Multiply:

7 : 11

7 × 7 = 49

49 : 11

Remember that whatever we do to the left, do to the right.

Multiply:

49 : 11

11 × 7 = 77

49 : 77

Now, let's add the number of boys and girls in the class to find the total number of students.

Add:

49 + 77 = 126

Therefore, there are 126 students in all.

step-by-step explanation:

de-gf

hj=3x+20

ji=15x-64

21

step-by-step explanation: