Respuesta :

Answer:

35 boys

Step-by-step explanation:

starkeykamryn22

Answer:

15/35 or 43% if your going to the nearest whole number so there are 35 boys and 15 girls

Step-by-step explanation:

Let x = the number of boys

Let 50 - x = the number of girls

Girls/Boys: 3 = 50 - x       Cross Multiply

                   7        x

3x = 350 - 7x

10x = 350

x = 35 boys

50 - x = 15 girls

Check: 15/35 = 3/7