Reteach Check (7.3b and 7.11a)

What value of x makes 4x + 4 = 12 true?

• 1
• 2
• 3
• 4

In a coin collection, the number of nickels is 8 more than twice the number of quarters. If the collection has 42 nickels, how many quarters are in the collection?

• 15
• 14
• 17
• 25

Kaitlin traveled 47.4 miles each day for the past 8 days.  How many miles did she travel in all?

• 37.92 miles
• 3.792 miles
• 3,792 miles
• 379.2 miles

Which answer choice is the best first step to solve?

• Add 2 to both sides.

• Subtract 6 from both sides.

• Add 6 to both sides.

• Multiply by 2 on both sides.

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

What is the solution to 
-3x+2< 8

• x > -3
• x > -2
• x < -2
• x < -3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

A phone company charges a sign-up fee of $3.50, plus $x for every hour the phone is used. If Brian talked on the phone for 12 hours and paid a total of $75.50, which of the following equations can be used to find, x, the hourly rate of the phone plan?

• 3.50 + x = 75.50 
• 3.50 - x = 75.50 
• 75.50 + 12x = 3.50 
• 3.50 + 12x = 75.50

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.A.1

I bought 10 tickets for $9.25 each to go the new Star Wars movie. If I had a $100 bill, do I have enough money to pay for all the tickets?

• Yes, and I have $7.50 left

• No, I need a lot more money than that!

• Yes, I have $6.50 left

• Are you kidding? There are no tickets left for that movie!

Tags

CCSS.5.NBT.B.7

Andy, Alfredo, and Karlo go to Cinergy to the movies and to play video games. Altogether they spend $145.56. They find $20 on the floor and use that towards their bill. The rest they split it evenly. About how much money did each pay?

• $63.89

• 125.56

• $436.68

• $41.85

Tags

CCSS.5.NBT.B.7

Match each equation to the correct model

• 3x = -5x - 4

• -3x = 5x + 4

• 3 = 5 + 4x

• -3 = -5 - 4x

Examine the model. What is the value of x in the equation this model represents?

• 4

• 6

• 8

• 10

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7