Equations and Inequalities

Demarcus has at least $8 more than his older sister. His older sister has $4. How much money does Demarcus have?

Which of the following inequalities could be used to find how much money, m, Demarcus has?

• $m\ >\ 8\ +\ 4$

• $8\ -\ m\ <\ 4$

• $8m\ >\ 4$

Write the inequality: 
The Chicago Cubs have won more than 100 games.

• x > 100
• x < 100
• x ≥ 100
• x ≤ 100

A box contains 48 snickers bars.  The price of the box is $52.25.  Each snickers bars cost the same amount.  Which could be used to finds, the price of one snickers bar?

• s + 48 = 52.25
• s / 48 = 52.25
• 𝑠 − 48 = 52.25
• 48s = 52.25

What could be solved using this number sentence? 
18 + m = 45

• Josh bought 18 pencils every day for 45 days. If m represents the number of pencils, how many pencils does he have now?
• Josh had 18 pencils. If his friend gave him 45. If m represents the number of pencils, how many pencils does he have now?
• Josh had 18 pencils. He received some pencils for Halloween. Now Josh has 45 pencils. If m represents the number of pencils, how many pencils did Josh receive for Halloween?
• Josh bought the same number of pencils every day for 18 days. At the end of 18 days, Josh had 45 pencils. If m represents the number of pencils, how many pencils did Josh buy every day?

Janie has 4 less than 5 times the number of candy Brayden has. If c, represents the amount candy Brayden, which of the following shows how much candy Janie has?

• 5c – 4
• 4 – 5c
• 5 ( 4 – c )
• 4c + 5

What value of t makes the following sentence true? 
2t = 20

• 8
• 10
• 40
• 15

James bought a video game for $42.00. He found the same video game at a different store for z dollars less. Which open sentence will be the most helpful for finding the price of the video game at the other store?

• 42 • z = ?
• z – 42 = ?
• z + 42 = ?
• 42 – z = ?

Which procedure could be used to find the value of m that will make the number sentence true?
m - 13 = 33

• Divide both sides of the equation by 13
• Multiply both sides of the equation by 13
• Add 13 to both sides of the equation
• Subtract 13 to both sides of the equation.

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides
• Subtract 11 from both sides
• Add 11 to both sides
• Divide 3 on both sides.