Unit 3 Test Review

Front

Solve for x: x - 7.5 = -20.5

Back

x = -13

Front

Treavor solves the inequality 2.5x - 10 < 20. Which card(s) should he remove if they are not part of the solution set? Options: Card A (0), Card B (8), Card C (-3), All of the cards shown are in the solution set.

Back

All of the cards shown are in the solution set.

Front

What is the first step when solving the equation: -3x - 10 = 32?

Back

Add 10 to both sides.

Front

Jordan's grandfather gave him a collection of 50 baseball cards. Each month he adds 2 cards. How many months until he has more than 200 cards?

Back

75 months.

Front

Write an equation to find x, the number of days a van can be rented for $1,000. The van rental is $80 per day plus a $200 insurance fee.

Back

80x + 200 = 1,000.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

Front

What is the solution to the equation 2x + 3 = 11?

Back

x = 4.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

How do you isolate a variable in an equation?

Back

You perform inverse operations to get the variable by itself on one side of the equation.