Real Life One Step Equations and Inequalities

Greg wrote in his math journal that 17 - x = 9 is an example of an algebraic equation. Which statement is true about the example Greg wrote in his math journal?

• Greg's example is an equation because there is a variable present.

• Greg's example is an equation because x can represent any value.

• Greg's example is an equation because it is a number sentence stating two amounts are equivalent.

• Greg's example is an equation because there are two numbers present.

Which inequality matches the graph?

• A

• B

• C

• D

Solve for y:

2.5y = 5

• y = 2

• y = 2.5

• y = 7.5

• y = 12.5

Sam earns $4 per hour completing chores on the weekends. Last weekend, he earned $10. Use the model to determine x, the number of hours Sam worked last weekend.

• x = 10

• x = 2

• x = 2 1/2

• x = 6

The minimum height a person must be to ride the Superman Roller-coaster is 54 inches. Which inequality can be used to show this?

• S > 54 inches

• S ≥ 54 inches

• S < 54 inches

• S ≤ 54 inches

8x ≥ -32

• x ≥ -4

• x ≥ 4

• x ≤ -4

• x ≥ 4

Solve for p:

6p - 5 =13

• 12

• 15

• 3

• -3

Javier scored 214.8 playing the first round of a video game. His sister played the second round and scored 198.4 points. Using the equation x-214.8 = 198.4, which of the following best represents the total points scored after the second round?

• 16.4points

• 302.2 points

• 313.2 points

• 413.2 points

The objective when solving an equation is to....

• isolate the variable.

• check the solution.

• guess and check.

• Combine Like Terms.

Which equation has x=9 as a solution

• 4 + x = 12

• 5x = 45

• 2x = 20

• x + 7 = 26