Lesson 21 Session 1

Multiple Choice

What is the missing value in the table showing the ratio of cups of flour to cups of milk for making pancakes?

• 8

• 9

• 10

• 12

Multiple Choice

According to the session objective, what does it mean for an equation to remain balanced?

• Both sides have the same numbers.

• You perform the same operation on both sides of the equal sign.

• The equation has only one variable.

• The equation is solved for x.

Multiple Choice

Deirdre and Joelle are reading the same book. Deirdre reads 3 times as many pages of the book as Joelle. Together they read 48 pages. Which equation can be solved to find the number of pages Joelle reads?

• 1/3x = 48

• 1/4x = 48

• 3x = 48

• 4x = 48

Multiple Select

Which equations have 6 as a solution?

• 4 = x + 2

• y - 2 = 4

• 6z = 36

• x + 2 = 6

• 8 + z = 14

Multiple Choice

What equation does the hanger diagram represent if the left side has six 1s and the right side has a variable y and three 1s?

• 6 = y + 3

• y = 6 + 3

• y = 6 - 3

• 6 + y = 3

Multiple Select

Which of the following are valid steps to solve for z in the hanger diagram shown?

• Count the total number of 1s on the left and set equal to the right.

• Subtract 1 from both sides to isolate z.

• Add all the 1s on both sides and divide by 2.

• Set z equal to the number of 1s on the left.