Calculating Sales Tax and Total Cost

The video tutorial explains how to calculate sales tax in two different cities using proportions and equations. It covers setting up proportions to find tax rates, calculating tax for various items, and completing tables for each city. The tutorial emphasizes understanding the constant of proportionality and using it to determine the tax rate as a fraction of the price.

What is the main focus of the shopping activity in two different cities?

• Exploring different shopping malls

• Learning about currency exchange

• Understanding discounts

• Calculating sales tax and total cost

How is the tax rate determined for an item costing eight dollars with a tax of 48 cents?

• By dividing the tax by the total cost

• By adding the tax to the total cost

• By multiplying the tax by the total cost

• By setting up a proportion and cross-multiplying

What is the constant of proportionality in the context of tax rate calculation?

• The discount rate applied

• The number of items purchased

• The tax rate as a fraction of the price

• The total cost of items

If the tax rate is six cents per dollar, what is the tax on a one-dollar item?

• 8 cents

• 6 cents

• 12 cents

• 10 cents

How does the tax rate affect the total cost of a pack of gum costing one dollar?

• It doubles the total cost

• It increases the total cost by the tax amount

• It reduces the total cost

• It has no effect on the total cost

What is the tax on a twelve-dollar item if the tax rate is six cents per dollar?

• 60 cents

• 80 cents

• 90 cents

• 72 cents

How is the tax rate calculated for City 2, where the tax is 64 cents on an eight-dollar item?

• By dividing 64 by 8

• By subtracting 8 from 64

• By multiplying 64 by 8

• By adding 64 to 8

What is the tax rate in City 2 for a twenty-five dollar item with a two-dollar tax?

• 12%

• 10%

• 8%

• 6%

How does the tax rate in City 2 compare to City 1?

• It is not applicable

• It is higher

• It is the same

• It is lower

What is the benefit of calculating the total cost with a single calculation?

• It eliminates the need for tax

• It increases the total cost

• It simplifies the process

• It reduces the tax rate