Percent -Part whole-Tax and Tips

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.

Front

What is the formula to find the total cost including tax?

Back

Total Cost = Original Price + (Original Price * Tax Rate)

Front

How do you calculate a tip based on a bill?

Back

Tip = Bill Amount * Tip Percentage (in decimal form). For example, for a $50 bill and a 15% tip, calculate 50 * 0.15 = $7.50.

Front

What is the relationship between part, whole, and percent?

Back

Percent is the part divided by the whole, multiplied by 100. Formula: Percent = (Part / Whole) * 100.

Front

If a meal costs $40 and the tax is 8%, what is the total cost?

Back

Total Cost = $40 + ($40 * 0.08) = $40 + $3.20 = $43.20.

Front

What is 25% of 200?

Back

25% of 200 is 50.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide by 100. For example, 25% = 25/100 = 0.25.

Front

If a bill is $60 and you want to leave a 20% tip, how much is the tip?

Back

Tip = $60 * 0.20 = $12.

Front

What is 15% of 80?

Back

15% of 80 is 12.