Simplifying expressions
6x + 4 - 2x =
4x + 4
x + 3 = 12
x = 9
When applying a discount, do you increase or decrease the sale price?
DECREASE
When applying a tax, do you increase or decrease the sale price?
INCREASE
What does this symbol mean?
>
<
Greater than
Less than
3x + 4 - 2x + 6 =
x + 10
4x = 16
x = 4
Turn the following percentage into a decimal:
7%
0.07
Turn the following percentage into a decimal:
27%
0.27
What is the value of x?
3x > 21
x > 7
-3 ( 2x + 8 ) =
- 6x - 24
3x + 7 = 19
x = 4
Calculate 15% of 60
9
Calculate the 30% of 70
21
A sign at a classroom says that the student limit for attendance is 25 students. Represent that with an inequality.
x (less than or equal to) 25
5 ( 6x + 7 ) - 12 =
30x + 23
3 ( x - 2) = 12
x = 6
At Target, you see a candy bar that cost $4. And you notice that it will have a 7% discount. How much money will the discount be towards the candy bar?
$0.28
At McDonalds, when buying the 2 sausage McMuffins for 5 dollars promotion, you will have to pay a 11% tax. How much is the Tax amount?
0.55
4x-2 < 18
Where did you put your point?
Did you shade to the left or right?
Is it an open or closed circle?
x < 5
Placed at x=5
Shaded to the left
Open circle
-3 ( 4x - 9 ) + 7 - 3x =
- 15x + 34
-4 (x - 5) + 10= 38
x = -2
When buying a watch that costs $80, you get a 24% discount. How much will you end up paying for the watch?
$60.80
At Walmart, a pair of blue jeans cost 25 dollars. And when you went to pay them, they tell you that they have a 12% tax. How much will you end up paying for the jeans in total?
$28
-4x + 8 < -20
Where did you put your point?
Did you shade to the left or right?
Is it an open or closed circle?
x > 7
Placed at x=7
Shaded to the right
Open circle