12, 16, 20, 24, 28
What is the pattern rule?
4n+8
16 x ___ = 64
16 x 4 = 64
3 + (4x5) = n
Solve for n
3 + 20 = 23
n = 23
30 r - 11 r - 15 r
= 4 r
If x= 5 and y=8, solve the following:
5x + y - (xy)
= (5 x 5) + 8 - (5 x 8)
= 25 + 8 - 40
= 33 - 40
= -7
94, 74, 54, 34, 14
What is the pattern rule?
-20n+114
8 + ____ = 21
8 + 13 = 21
41 - (6p) = 11
Solve for p
p = 5
29n - 16n + 11n
=24n
If x= 3 and y= -4, solve the following:
4x + 5y - (3 + x)
= (4 x 3) + (5 x -4) - (3 + 3)
= 12 + (-20) - 6
= -8 - 6
= -14
31, 40, 49, 58, 67
What is the General Term for the pattern?
9n+22
18 - ____ = 9
18 - 9 = 9
2x + 4x = 24 - 12 + 3x
Solve for x
6x = 12 + 3x
6x - 3x = 12 + 3x - 3x
3x = 12
3x/3 = 12/3
x = 4
c + 24y + 39b - 12b + 53y + c
= 2c + 77y + 27b
If x= 2 and y=10, solve the following:
5x + 3y - (xy)
= (5 x 2) + (3 x 10) - (2 x 10)
= 10 + 30 - 20
= 40 - 20
= 20
3, 7, 11, 15, 19, 23
What is the pattern rule?
4n-1
7 x ____ = 35
7 x 5 = 35
10x - 15 = 50 - 5x
Solve for x
10x - 15 + 15 = 50 - 5x + 15
10x + 5x = 65 - 5x + 5x
15x/15 = 65/15
x = 4.33
28y - 14n + 11c - 7c + 15n - 24y
= 4y + n + 4c
If x= 4 and y=7, solve the following:
(3x - 3) - y + (xy)
= ((3 x 4) - 3) - 7 + (4 x 7)
= (12-3) - 7 + 28
= 9 - 7 + 28
= 2 + 28
= 30
47, 41, 35, 29, 23
What is the pattern rule?
-6n+53
9 x ____ = 36
9 x 4 = 36
9x - 12 = 30 - 3x
Solve for x
9x - 12 + 12 = 30 - 12 - 3x
9x + 3x = 18 - 3x + 3x
12x/12 = 18/12
x = 1.5
73y + 41c + 67r - 24r + y - 18c
= 74y + 23c + 43r
If x= 9 and y=-3, solve the following:
(4x) x (3y) / (xy)
= (4 x 9) x (3 x -3) / (9 x -3)
= 36 x -9 / -27
= -324 / 27
= 12