Percents Unit Review

Front

What is a percent?

Back

A percent is a ratio expressed as a fraction of 100. It represents a part of a whole.

Front

How do you convert a percent to a decimal?

Back

To convert a percent to a decimal, divide the percent by 100. For example, 25% becomes 0.25.

Front

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

Back

The formula is: (Percent / 100) x Number = Percentage.

Front

Find 0.8% of 1,046.

Back

8.368

Front

How do you find 160% of a number?

Back

Multiply the number by 1.6. For example, 160% of 98 is 98 x 1.6 = 156.8.

Front

What is simple interest?

Back

Simple interest is calculated using the formula: Interest = Principal x Rate x Time.

Front

Ethan put $700 into a bank account that earns 1.8% interest each year. What will the interest be after 6 years?

Back

$75.60

Front

How do you calculate a shipping fee that is a percentage of the purchase price?

Back

Multiply the purchase price by the shipping percentage. For example, for a $56 item with a 4.5% fee, the fee is $56 x 0.045 = $2.52.

Front

What is the total cost after applying a discount and then adding sales tax?

Back

First, calculate the discounted price, then apply the sales tax to the discounted price.

Front

Nya wants to buy a sweater that had an original price of $55. The store is selling it for 20% off. Then, there is a sales tax of 5.5%. How much will Nya pay for the sweater?

Back

$46.42