The type of operations we do to solve equations. AKA "the reverse of"
INVERSE OPERATIONS
x + 5 = 11
x = 6
1/8 = x/4
x = 0.5
8x + 4 - 2x
6x + 4
What is the probability of randomly selecting a gray card? (Fraction AND percent)
5/8 , 62.5%
How likely something is to occur.
3/4x = 18
x = 24
What is 10% of 145?
14.5
Simplify:
10x + 3 - 1 + 2x
12x + 2
P ( gray and circle ) = _____ (Fraction and percent)
1/4, 25%
PERCENT, %
2x + 3 = 63
x = 30
x/13 = 20/65
x = 4
Simplify:
8y - 4 - 20y - 9
-12y - 13
or
-13 - 12y
P ( red ) = _________ (Fraction and percent)
1/3, 33%
Two angles that add up to 180o
Supplementary Angles
5x - 1/2 = 3/4
x = 1/4
What is 18% of 125.75?
22.635
6 - 4a + 5b + 8a - 4
4a + 5b + 2
P ( orange, purple, or green ) = _________ (Fraction and percent)
2/5, 40%
INEQUALITY
2 - 3x = - 13
x = 5
What is 60% of 700?
420
Simplify:
2 ( a + 3b ) + 6 ( 5b + 2a )
4a + 36b
P ( at least a 4 and gray ) = __________ (Fraction and percent)
5/16 , 31%