Percent Word Problems

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 calculate a percentage of a number?

Back

To calculate a percentage of a number, multiply the number by the percentage (in decimal form). For example, to find 20% of 50, calculate 50 * 0.20 = 10.

Tags

CCSS.6.RP.A.3C

Front

What is the formula to find the total amount when given a percentage and the part?

Back

The formula is: Total = Part / (Percentage in decimal form). For example, if 25 is 20% of a total, then Total = 25 / 0.20 = 125.

Tags

CCSS.6.RP.A.3C

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 75% becomes 0.75.

Front

What is commission in sales?

Back

Commission is a fee paid to a salesperson based on the sales they make, usually expressed as a percentage of the sale.

Tags

CCSS.6.RP.A.3C

Front

If a salesperson earns a 10% commission on a $200 sale, how much do they earn?

Back

They earn $20, calculated as 200 * 0.10.

Tags

CCSS.6.RP.A.3C

Front

What is a tax rate?

Back

A tax rate is the percentage at which an individual or corporation is taxed. For example, a 6% tax rate means you pay $6 for every $100 earned.

Tags

CCSS.6.RP.A.3C

Front

How do you calculate sales tax on a purchase?

Back

To calculate sales tax, multiply the purchase amount by the sales tax rate (in decimal form). For example, for a $50 purchase with a 6% tax rate, the tax is 50 * 0.06 = $3.

Tags

CCSS.6.RP.A.3B

Front

What does it mean for a tax to be proportional?

Back

A proportional tax means that the tax rate remains constant regardless of the amount being taxed. For example, a 5% tax rate applies to all amounts.

Tags

CCSS.7.RP.A.2D

Front

How do you find the original price before tax?

Back

To find the original price before tax, divide the total price by (1 + tax rate in decimal form). For example, if the total is $106 with a 6% tax, the original price is 106 / 1.06 = $100.

Tags

CCSS.6.RP.A.3C