contestada

there is a ratio of 3 boys to every 4 girls. if there are 245 total students, how many are boys

Respuesta :

Answer:105 boys


Step-by-step explanation :for every group of 7 students (3+4) there are 3 boys and 4 girls. And how many groups do we have? We have:

245/7= 35 We have 35 groups, and we just said that each group has 3 boys and 4 girls:

35*3= 105 boys

35*4= 140 girls

Total: 245 students