Lets Review

Select all expressions that are equivalent to 4(j + 3) – j

• 3j + 7

• 
  3j + 12

• 4j + 7 - j

• 2. 5j + 7

• 
  4j + 12 - j

The driveway is 32 feet 6 inches long. How long is the driveway in inches? 

Mathematical Equivalence

ON

Keyli wants to spend no more than $40 to celebrate her birthday with her four friends. Each box of her favorite pizza costs $5.50. Which inequality can Keyli use to find p, the number of boxes of pizza she can buy without exceeding $40?

• 
  5.5p > 40
  

• 40/p ≤ 5.50
  

• 5.5p < 40
  

• 
  p + 5.5 < 40

Erica is making bouquets of flowers. She has 16 roses, 24 tulips, and 40 daisies. Which expression is equivalent to the total number of flowers Erica is using to make bouquets?

• 4(10 + 6) + 4 
  

• 4(10 + 6 + 4)
  

• 
  16 + 4(6 + 4)
  

• 40 + 6(4 + 4) 
  

• A

• B

• C

• D

Which expression does NOT represent the model?

• x² + 1 + x² + 1 + x + x + x 
  

• 
  1 + 1 + 2x² + 3x 
  

• 5x² + 2
  

• 2. 2x² + 3x + 2 

Which expression is equivalent to (10 • k ) + 4?

• 4 − (10 • k)
  

• 4 + (k • 10)

• 10 + 4 • k
  

• 10 • (k + 4)
  

Which situation can be represented by the equation x + 18 = 30? 

• Osbaldo bought new gloves and a hat for $30. The gloves cost $18. What is the cost of the hat? 
  

• Mayleen needs to earn more than 30 points to get an A in math. She has 18 points already. How many MORE points does she need to earn more than 30 points? 
  

• 
  There are 30 students in band. There are 18 students in choir. How many students are in band and choir in all? 
  

• Jayren is reading a book. For 18 days, Jayren reads 30 pages per day. How many pages does Jayren read in all? 
  

Imani wants to make a beaded bracelet using 0.8-kilometer of string. How many centimeters is 0.8 kilometer?

• 800 cm

• 8,000 cm

• 80,000 cm

• 800,000 cm

Keshon and his family traveled to Las Vegas to visit family members. The first day they drove 275 miles. The second day they drove 42 more miles than the first day. Andy wants to find the number of miles, m, they drove on the second day.

Which equation could Keshon use?

• m = 275 – 42

  
  

• 275 + 42 = m

  
  

• m = 275 + 317

  
  

• 1. 275 + 233 = m