The video tutorial focuses on translating phrases into variable expressions, a fundamental skill in algebra and related sciences. It covers basic examples involving addition, subtraction, multiplication, and division, and progresses to practical scenarios like height comparisons and cost calculations. The tutorial also demonstrates using formulas to solve problems, emphasizing the importance of understanding the context and order of operations.

What is the variable expression for '10 more than a number'?

• 10 - n

• 10n

• n - 10

• n + 10

How would you express '5 times a number' in variable form?

• n/5

• n - 5

• 5n

• 5 + n

Which expression correctly represents 'the difference between a number and 2'?

• 2 - n

• n + 2

• n - 2

• 2n

How do you translate '6 more than twice y' into a variable expression?

• 6y + 2

• 6 - 2y

• 2y + 6

• y + 6

If Bob is 2 feet taller than Joe, and Joe's height is J feet, what is Bob's height?

• J - 2

• J/2

• 2J

• J + 2

What is the expression for the total cost of 3 pencils and 2 notebooks if pencils cost W cents each and notebooks cost N cents each?

• 3W + 2N

• 3N + 2W

• W + N

• 3W - 2N

How do you calculate the perimeter of a rectangle with length 5R yards and width 2S yards?

• 5R - 2S

• 10R + 4S

• 10R - 4S

• 5R + 2S