At a school outing, the ratio of boys to girls is 3:4. If 84 students went on the outing, how many students were girls?

36 girls

Step-by-step explanation:

Find the number of students in all:

To do this, add the number of boys and girls in the ratio.

Boys : Girls

3 : 4

3 + 4 = 7

Therefore, there are 7 children in all.

Find the number ratio of boys to girls if there were 84 children in total:

To do this, divide 84 and 7.

84/7 = 12

Therefore, we need to multiply both sides of the ratio by 12.

Find the new ratio:

3 : 4

Girls: 3 x 12 = 36

Boys: 4 x 12 = 48

Girls : Boys

36 : 48

Check:

To do this, add the number of girls and boys to see if the total number of students is 84.

38 + 48 = 84

We're correct :)

Therefore, there would be 36 girls if 84 students went on the outing.

30 feet

step-by-step explanation:

that would be 2 1/2 * 12

= 24 + 6

= 30 feet   (answer)

a

step-by-step explanation: