Practice for KAP Minor 3.3

Front

What is the formula to calculate the final price after a discount?

Back

Final Price = Original Price - (Discount Percentage × Original Price)

Front

If a sweater costs $43 and is on sale for 20% off, what is the discount amount?

Back

Discount Amount = 20% of $43 = $8.60

Front

What is sales tax and how is it calculated?

Back

Sales tax is a percentage of the purchase price added to the total cost. It is calculated as: Sales Tax = Purchase Price × Sales Tax Rate.

Front

How do you calculate the total cost including sales tax for a purchase?

Back

Total Cost = Purchase Price + Sales Tax.

Front

What is the total cost of an Apple computer for $890 and a printer for $49 with a 6% sales tax?

Back

Total Cost = ($890 + $49) + 6% of ($890 + $49) = $995.34.

Front

What percentage of Russell's 1,200 pennies are dated from 1980 to 2000?

Back

35% of 1,200 = 0.35 × 1,200 = 420 pennies.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Front

How do you find an equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the equivalent ratio of 3:5?

Back

6:10 is an equivalent ratio of 3:5.

Front

How do you calculate a tip based on a percentage?

Back

Tip Amount = Total Bill × Tip Percentage.