ACT math practice

Front

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

Back

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

Front

How do you calculate the total cost after applying sales tax?

Back

Total Cost = Final Price + (Sales Tax Percentage × Final Price)

Front

What is the process to find the percentage of a number?

Back

Percentage of a number = (Percentage/100) × Number

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers.

Front

How do you find the x-intercept of a quadratic equation?

Back

Set y = 0 and solve the equation for x.

Front

What is the meaning of a 30% discount on an item?

Back

A 30% discount means the item will cost 30% less than its original price.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.

Front

What is the significance of the sales tax in a purchase?

Back

Sales tax is an additional charge added to the price of goods and services, calculated as a percentage of the sale.

Front

How do you calculate the total amount spent after multiple discounts?

Back

Apply each discount sequentially to the price, then calculate the final price before tax.

Front

What is the formula for calculating the percentage increase or decrease?

Back

Percentage Change = ((New Value - Old Value) / Old Value) × 100