Sales Tax and Cost Expressions

This video tutorial covers translating real-world statements into algebraic expressions. It includes examples such as calculating heights, sales tax, savings over time, and movie ticket costs. The tutorial explains how to use variables to represent unknown quantities and how to perform basic algebraic operations to form expressions.

If Jose is 8 inches taller than Alisa, and Alisa's height is represented by 'a', how can we express Jose's height?

• 8a

• a - 8

• a / 8

• a + 8

Given that Jose is 8 inches taller than Alisa, and Jose's height is represented by 'j', how can we express Alisa's height?

• 8j

• j - 8

• j / 8

• j + 8

What is the decimal equivalent of a sales tax rate of 8.6%?

• 0.086

• 0.0086

• 0.86

• 8.6

How would you express the sales tax for an item costing 'c' dollars with a tax rate of 8.6%?

• c / 0.086

• c - 0.086

• 0.086c

• 0.086 + c

If you start with $485 and save an additional $50 each month, how would you express the total savings after 'm' months?

• 485 - 50m

• 485 + 50m

• 485m + 50

• 50 + 485m

What is the initial amount saved at the start of the year?

• $50m

• $50

• $485

• $535

If adult movie tickets cost $9 each, how would you express the total cost for 'a' adults?

• a / 9

• a + 9

• 9 + a

• 9a

If children's movie tickets cost $6.50 each, how would you express the total cost for 'c' children?

• c / 6.5

• c + 6.5

• 6.5 + c

• 6.5c

How would you express the total cost for 'a' adults and 'c' children to attend a movie?

• a + c

• 9a + 6.5c

• 9 + 6.5 + a + c

• 9c + 6.5a

What is the cost of a single adult movie ticket?

• $6.50

• $9.00

• $15.50

• $9.50