Review

Integers

100

13 - 23

-10

200

-4 - 15

-19

300

90 ÷ -3

-30

400

-8 - (-4)

-4

500

-50 x -24

1200

Proportions

100

What do you do to find the constant of proportionality?

Y÷X

200

If a relationship is proportional, its graph intersects or starts at the 

Origin or (0,0)

300

In a cookie recipe 2.5 cups of flour is needed for every 1 cup of butter. This is called a 

Unit Rate

400

Michelle goes on a 6.4 mile hike and it takes her 2.5 hours. How fast does she hike in mph?

2.56 mph

500

# of Tickets: 3      5     10

Total Cost:   81   135   270

What is the cost for one ticket?

$27

Expressions

100

7 - 3(4-2x) - 10x is equivalent to 

-5 - 4x

200

Is -8 - 2(3+2x) + 7x equivalent to -30 - 13x?

No

300

The perimeter of a rectangle with a length of 50 and a width of x can be represented by 50+x+50+x. What is another way of writing this expression?

2(50+x) or 2(50)+2x

400

If two expressions are equivalent, does it matter which one you use to solve a problem?

No, if they are equivalent all answers will be the same.

500

Simplify 3(2x+5) - 4(x-2)

2x + 23

Equations

100

Solve for x

28 + 2x = 76

x = 24

200

Solve for x

2/3x = 10

x = 15

300

Solve for x

28 – 32x = 92

x = -2

400

Solve for x

4(5+x) = 44

x = 6

500

The perimeter of a rectangle is 47ft. The length is x and the width is 7.5ft. What is the equation that could be used to determine the width. 

2x + 15 = 47

Inequalities

100

Solve for x

12x > 48

x > 4

200

Solve for x

x/9 > 3

x > 27

300

Solve for x

4 + 30x > -146

x > -5

400

Solve for x

42 - 7x ≥ 4(7x - 7)

2 ≥ x

500

What happens to the inequality sign when you divide both sides by a negative number?

The inequality sign flips or reverses