There are 20 counters in a box. a counter is chosen and replaced 100 times, the results are 32 blue and 68 red. how many of each color do you think there are in each box ?

45/ 360 = 6/x
45x = 2160
x - 2160/45 = 48 people

2)
n = (n - 1) - 5

3)
7x - 11 = 19 - 3x
add 3x to both sides:
10x - 11 = 19
add 11 to both sides:
10x = 30
divide both sides by 10:
x = 30/10 = 3

4)
4(8)(11) - 64 = 288

5)
(5, 0)

6)
-4x -3 + 2x - 6 = -2x - 9

7)
1.8(-20) + 32 = -4F

8)
Exterior angle add to 360
360/6 = 60 degrees

10)
2x/9 = 12
2x = 108
x = 108/2 = 54

11)
x = 0

12)
8 + 3 + 1 = 12
240/12 = 20
8(20) = 160
3(20) = 60
1(20) = 20

160 pounds, 60 pounds, 20 pounds