Mathematical Problem Solving Concepts

The video tutorial covers various mathematical concepts including solving plug-in expressions to find the smallest value, using tree diagrams for probability questions, calculating unit rates, comparing median scores, solving expressions with the distributive property, and representing equations for rent calculations. Each section provides step-by-step explanations and examples to enhance understanding.

If x equals 100, which expression results in the smallest value?

• 1/x

• 10/x

• 1 - x

• 10 - x

How many total outcomes are there when using a tree diagram to determine the probability of getting a sandwich with cheese?

• 4

• 6

• 8

• 10

What is the probability of Mary getting a sandwich with cheese?

• 1/2

• 1/8

• 1/4

• 3/4

What is the unit price per pound for a 5-pound bag of apples costing $4.50?

• $0.95

• $0.80

• $0.85

• $0.90

What is the difference in unit price between a 5-pound bag and an 8-pound bag of apples?

• $0.05

• $0.04

• $0.03

• $0.02

What is the median score for Johnny's dataset?

• 70

• 75

• 85

• 80

Which statement is true about Sally's median score compared to Johnny's?

• Sally's median is higher

• Sally's median is lower

• Sally's median is the same

• Sally's median is not calculable

What is the result of applying the distributive property to the expression 1/2(2n + 6)?

• n + 6

• 2n + 3

• 2n + 6

• n + 3

How much does Susan earn per hour if she works 5 hours and earns $47.50?

• $9.00

• $10.00

• $9.50

• $8.50

What is the monthly rent if Mr. Kelly pays $12,564 annually?

• $1,056

• $1,076

• $1,067

• $1,047