There are 30 students in the math class. There are 6 more boys than 1/2 the number of girls. How many boys and girls are there in class?

Respuesta :

Answer: there are 14 boys and 16 girls in the class.

Step-by-step explanation:

Let x represent the number of boys in the maths class.

Let y represent the number of girls in the maths class.

There are 30 students in the math class. This means that

x + y = 30 - - - - - - - - - - - - - - -1

There are 6 more boys than 1/2 the number of girls. This means that

x = y/2 + 6

Substituting x = y/2 + 6 into equation 1, it becomes

y/2 + 6 + y = 30

Cross multiplying by 2, it becomes

y + 12 + 2y = 60

y + 2y = 60 - 12

3y = 48

y = 48/3 = 16

Substituting y = 16 into x = y/2 + 6, it becomes

x = 16/2 + 6 = 8 + 6

x = 14

Answer:

21

Step-by-step explanation: