Flashcard #2-3: Solving Percent Proportions (R)

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 x 0.20 = 10.

Front

What is a tip?

Back

A tip is a small amount of money given to someone for their service, typically calculated as a percentage of the total bill.

Front

How do you find the total amount after adding a tip?

Back

To find the total amount after adding a tip, calculate the tip amount and then add it to the original total. For example, if the bill is $100 and the tip is 15%, the total is $100 + ($100 x 0.15) = $115.

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where their ratio remains constant.

Front

How can you identify a proportional relationship in a table?

Back

You can identify a proportional relationship in a table by checking if the ratios of corresponding values are equal.

Front

What is commission?

Back

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

Front

How do you convert a decimal to a percent?

Back

To convert a decimal to a percent, multiply the decimal by 100 and add a percent sign. For example, 0.25 becomes 25%.

Front

What is a scaled copy?

Back

A scaled copy is a figure that is similar to another figure but is either larger or smaller by a certain scale factor.

Front

How do you find the scale factor between two similar figures?

Back

To find the scale factor, divide the length of a side of the scaled figure by the corresponding side of the original figure.