3/7 of the students in a school are in sixth grade. a) How many sixth graders are there if the school has 70 students? 7 b) How many sixth graders are there if the school has 28 students?​

a) 30 sixth-graders

b) 12 sixth-graders

Step-by-step explanation:

You can solve this problem by multiplying fractions. In order to solve a, you need to multiply 3/7 by 70 students to e t the number of sixth-graders because 3/7 of the population (in this case it's 70) are 6th graders:

70 × 3 ÷ 7 = 70 ÷ 7 × 3 = 30

So if the school has 70 students, 30 are 6th graders.

For part b, you multiply the student population (28) by the ratio 3/7 to find how many 6th grader there are:

28 × 3 ÷ 7 = 28 ÷ 7 × 3 = 12

So if the school has 28 students, 12 are 6th graders.

Step-by-step explanation:

A) (3/7)*70=30 students

B) (3/7)*28=12 students

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step-by-step explanation:

step-by-step explanation:

i think you should think about the question and not look online.