The number of students in 10 kindergarten classes is shown below

20, 18, 21, 18, 22, 24, 18, 23, 23, 24,

What is the median number of students in the kindergarten classes?

21.5

Step-by-step explanation:

Median = Middle

Arrange the numbers:

18, 18, 18, 20, 21, 22, 23, 23, 24, 24

There is no exact middle, so

21 + 22 = 43

43 ÷ 2 = 21.5

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

what is the answer?