Text Messaging Inequalities and Relationships

The video tutorial explains a family's texting plan with a 500-text limit. It compares the number of texts sent by J.T. and his family members, defines variables for each, and expresses these in terms of J.T.'s texts. The tutorial then solves an inequality to determine the maximum number of texts J.T. could send without exceeding the limit.

What is the maximum number of text messages J.T.'s family can send in a month?

• 700

• 400

• 500

• 600

Tags

CCSS.2.OA.A.1

How many more texts did J.T. send compared to his older sister?

• 15

• 45

• 25

• 35

Tags

CCSS.6.EE.B.6

Which family member sent 50 more texts than J.T.?

• Older sister

• Younger sister

• Mother

• Father

Tags

CCSS.6.EE.B.6

What variable is used to represent the number of texts sent by J.T.'s mother?

• m

• y

• o

• j

Tags

CCSS.6.EE.B.6

If J.T. sent 25 more texts than his older sister, how can we express the older sister's texts in terms of J.T.'s texts?

• j + 50

• j - 50

• j - 25

• j + 25

Tags

CCSS.6.EE.B.6

How can we express the younger sister's texts in terms of J.T.'s texts?

• j + 25

• j - 50

• j - 25

• j + 50

Tags

CCSS.7.EE.B.4B

What is the equation for the total number of texts sent by the family?

• 4j + 100 ≥ 500

• 4j + 100 ≤ 500

• 4j - 100 ≤ 500

• 4j - 100 ≥ 500

What is the maximum number of texts J.T. could have sent?

• 150

• 125

• 100

• 175

Tags

CCSS.7.EE.B.4B

What operation is performed to isolate j in the inequality 4j - 100 ≤ 500?

• Add 100

• Multiply by 4

• Subtract 100

• Divide by 4

Tags

CCSS.6.EE.B.8

After solving the inequality, what is the final step to find the value of j?

• Add 4

• Subtract 4

• Multiply by 4

• Divide by 4

Tags

CCSS.6.EE.B.8