Real-world Percents
Proportional Relationships
Simplifying expressions
Fun with Integers
Solving equations
100
I went to a restaurant and my total bill was $40. I wanted to leave a 20% tip. How much should I leave?
$8
100
My daughter made the following sales of Girl Scout cookies:
- 3 boxes for $18
- 2 boxes for $12
- 4 boxes for $24
What is the constant of proportionality for this scenario?
$6 per box
100
Simplify the expression:
2x + 3x + 17
5x + 17
100
What is:
4 + 5 + 8 - 3
14
100
Solve for x:
x - 5 = 22
x = 27
200
I went to the store and bought some school supplies for a total of $20. Sales tax is 6%. How much sales tax will I have to pay?
$1.20
200
Consider the following:
- 200 Vbucks costs $10
- 300 Vbucks costs $15
- 500 Vbucks costs $25
Assuming the cost of Vbucks is a proportional relationship, how much would 900 Vbucks cost?
$45
200
Simplify the expression:
2x + 3x + 6y - 2y
5x + 4y
200
What is:
5 + 3 * 2 - 4
7
200
Solve for x:
3x = 48
x = 16
300
I took a math test and got 24 of the 30 questions right. What percentage of the questions did I get right?
80%
300
I have a recipe to make a cake that requires one and a half cups of flour and one cup of sugar.
If I'm making enough cakes that I need to use 6 cups of flour, how many cups of sugar will I need?
4 cups of sugar
300
Simplify the expression:
-3x + 5 - 6y + 2x - 8x - 3y - 14
-9x - 9y - 9
300
What is:
-4 - 6 + (5 - 3)
-8
300
Solve for x:
5x + 6 = 41
x = 7
400
I took a science test and got 70% of the questions correct. If there were 20 questions on the test, how many did I get WRONG?
6
400
Consider this graph. How many cookies do I need to sell in order to make a $3 profit?
12
400
Simplify the expression:
4(3x - 2) + 5x + 8
17x
400
What is:
-4 * (3 - 8) + 34
54
400
Solve for x:
1.5x - 3.2 = 1.3
x = 3
500
I bought some big packs of gum for $2 each. I want to sell them at school and make a 25% profit. How much should I sell the packs for?
$2.50
500
Consider the following table:
| x | 0 | 0.3 | 0.6 | 1 |
| y | 0 | 6 | 12 | 20 |
Is this relationship proportional?
Yes
500
Simplify the expression:
-6(2x - 7) + 3(x + 2)
-9x + 48
500
NO CALCULATORS!
What is:
367 * 62
22,754
500
Solve for x:
-3(2x - 6) = -12
x = 5