Mathematical Concepts and Problem Solving

This video covers part three of a series on the Grade 7 STAR test, focusing on problems 28 to 40. It includes detailed solutions for each problem, covering topics such as evaluating equations, unit conversion, probability, net worth calculation, area calculation, data analysis, and more. The video emphasizes step-by-step problem-solving techniques and provides insights into mathematical concepts relevant to the test.

What is the main focus of the video tutorial?

• Grade 8 Mathematics STAR Test problems 28-40

• Grade 7 Mathematics STAR Test problems 28-40

• Grade 9 Algebra problems 28-40

• Grade 7 Mathematics STAR Test problems 1-10

In problem 28, which equation is true when c equals 3?

• 4c + 2 = 20

• 9 - 6c = 0

• 5(7 - c) = 32

• 2c + 8 = 31

How many liters are approximately equivalent to 785 gallons?

• 2983 liters

• 3000 liters

• 2500 liters

• 3200 liters

What is the probability of selecting a cherry or watermelon flavored lollipop?

• 0.8

• 0.6

• 0.4

• 0.2

What is the current value of Avery's car if his net worth is $53,755?

• $20,000

• $15,000

• $12,480

• $10,000

What is the total area of the figure composed of a rectangle, triangle, and semicircles?

• 80 square centimeters

• 74 square centimeters

• 67 square centimeters

• 60 square centimeters

What percentage of students have five or more vowels in their names?

• 70%

• 60%

• 50%

• 80%

Which situation can be represented by the equation 250 + 65x = 575?

• A cyclist travels 575 miles at 65 mph after traveling 250 miles.

• A car travels 250 miles at 65 mph to reach 575 miles.

• A plane travels 250 miles and then 65 miles per hour to reach 575 miles.

• A train travels 575 miles after already traveling 250 miles at 65 mph.

What is the value of x in the triangle with angles 30, 50, and 2x + 10?

• 40

• 45

• 50

• 55

What is the solution set for the inequality 4 - 5g > 39?

• g > 7

• g < 7

• g > -7

• g < -7