A club put its members into 5 groups for an activity. After 7 student have to leave early, there are only 3 students left to finish the activity. How many students were in each group.

2 students in each group

Step-by-step explanation:

If there were 5 groups and after a while 7 students leave early and 3 students remain to do the activity, if you add 7 + 3 = 10 divide it by 5, the number of groups in the activity, you would get 2 students in each group.

There were 2 students in each group

Step-by-step explanation:

Club members to start = C

7 students left early, and 3 remain

C - 7 = 3

Add 7 to both sides

C = 10

There were 10 students to start

Divided into 5 groups

10 ÷ 5

2

There were 2 students in each group

Hope this was useful to you!

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.