Unit 2 - opportunity to raise test grade

Front

What is the percent equation used to find a number when given a percentage?

Back

The percent equation is: Part = Percent × Whole.

Front

How do you calculate the percent of change?

Back

Percent of Change = (New Value - Old Value) / Old Value × 100.

Front

If a shirt originally costs $45.00 and is on sale for 40% off, how do you find the sale price?

Back

Sale Price = Original Price - (Discount × Original Price). Discount = 0.40 × $45.00 = $18.00, so Sale Price = $45.00 - $18.00 = $27.00.

Front

What is simple interest and how is it calculated?

Back

Simple Interest = Principal × Rate × Time.

Front

If Bailey takes a loan of $6,500 at an interest rate of 8% for 5 years, what is the total amount she will pay?

Back

Total Amount = Principal + Interest. Interest = $6,500 × 0.08 × 5 = $2,600. Total Amount = $6,500 + $2,600 = $9,100.

Front

How do you set up a proportion to find a percentage?

Back

Use the formula: x/Whole = Percent/100.

Front

What is 30% of 80?

Back

30% of 80 = 0.30 × 80 = 24.

Front

What does it mean for a price to be marked down by a percentage?

Back

A price marked down by a percentage means that the original price is reduced by that percentage.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 20% = 20/100 = 0.20.

Front

What is the formula for finding the total cost after tax?

Back

Total Cost = Original Price + (Tax Rate × Original Price).