Definitions
What is this symbol called?
≥
Greater Than or Equal to Symbol
What is the inverse of division?
Multiplication
Solve for x:
x + 3 = 36
33
How is this inequality read:
x ≥ 100
X is greater than or equal to one hundred
When you know the total but not the amount in each group, what operation can you perform?
Division
This can be used to plot inequalities, what is it?
A number line
When solving equations or inequalities, the first step is to....
get the variable alone.
What operations are being applied to x?
2(x+17)
X is being added to 17 and multiplied by 2
Solve this inequality:
2x < 56
x < 28
When the word each appears in the "story part" of the word problem, what operation will you perform?
Multiplication
What is the letter used to represent an unknown amount called?
A Variable
What is the first step when you divide decimals?
Make the divisor a whole number
Solve for x:
x+24=12
-12
27 < 6x
4.5 < x
Write an equation for this word problem:
The cheerleading coach bought a pack of poster paper and split the paper evenly among the 10 cheerleaders. The coach gave each cheerleader 2 pieces of poster paper.
Let p represent how many pieces of poster paper were in the coach's pack.
p ÷ 10 = 2
What is the "number" that appears next to the "letter" called? What operation does it represent?
A coefficient, it represents multiplication.
How many solutions does an inequality have?
Infinitely Many
Solve for x:
4 ( x + 12 ) = 88
x = 10
Solve the inequality:
6 ≤ x ÷ 8 + 2
0.5 ≤ x
Write and solve an equation for the following word problem:
Clara wants to have her birthday party at a dine-in movie theater. Her dad calls the theater to let them know 12 kids will attend the party. The theater offers Clara's dad a group rate, which comes out to $16.25 per kid.
Let c represent the total cost for the group
c ÷ 12 = 16.25
What is it called when you flip a fraction?
The reciprocal
What happens when you multiply both sides of an inequality?
The inequality symbol flips
17 - 6x = 77
x = -10
Solve this inequality:
30 < -6x
-5 > x
Write and solve an equation for the following word problem:
Ian wanted to display some photos of his recent vacation to Surf City Beach. He used seashells he collected at the beach to decorate 7 picture frames. Ian used the same number of seashells to decorate each frame. He used 63 seashells in all.
Let s represent how many seashells Ian used to decorate each frame.
7 ⋅ s = 63