Understanding Age-Related Math Problems

The video tutorial explains a practice SAT math question involving the ages of Eddie and Brian. Eddie is seven years older than Brian, who is X years old. The tutorial demonstrates how to organize information in a table to calculate their current ages and determine their ages 11 years ago. By simplifying expressions, it concludes that Eddie's age 11 years ago is X minus four, which corresponds to answer choice B.

If Eddie is seven years older than Brian, and Brian is X years old, how would you express Eddie's current age?

• X - 7

• X + 7

• 7X

• X / 7

Tags

CCSS.8.EE.C.7B

What is the first step in organizing information to solve the problem of finding Eddie's age 11 years ago?

• Draw a graph

• Make a list

• Write an essay

• Create a table

Tags

CCSS.6.EE.B.6

How do you calculate Eddie's age 11 years ago if his current age is expressed as X + 7?

• Divide X + 7 by 11

• Multiply X + 7 by 11

• Subtract 11 from X + 7

• Add 11 to X + 7

Tags

CCSS.6.EE.B.6

What expression represents Brian's age 11 years ago if he is currently X years old?

• X * 11

• 11 - X

• X - 11

• X + 11

Tags

CCSS.6.EE.B.6

After simplifying the expression for Eddie's age 11 years ago, what is the result?

• X + 4

• X - 4

• X / 4

• 4X

Tags

CCSS.6.EE.B.6

What is the final answer for Eddie's age 11 years ago according to the problem?

• B, X - 4

• A, X + 4

• C, 4X

• D, X / 4

Tags

CCSS.8.EE.C.7B

Why is it important to simplify the expression for Eddie's age 11 years ago?

• To add more steps

• To confuse the reader

• To make it more complex

• To find the correct answer

Tags

CCSS.8.EE.C.7B