Proportionality Retest 24-25

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as the unit rate.

Front

How do you convert inches to centimeters?

Back

To convert inches to centimeters, multiply the number of inches by 2.5.

Front

What is the formula to calculate percent decrease?

Back

Percent Decrease = ((Original Value - New Value) / Original Value) x 100.

Front

If 15 bags of groceries weigh 45 pounds, how much does one bag weigh?

Back

One bag weighs 3 pounds (45 pounds / 15 bags).

Front

How do you calculate the total cost including sales tax?

Back

Total Cost = (Cost of Items) + (Cost of Items x Sales Tax Rate).

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit.

Front

If a bone measures 27 inches, how long is it in centimeters?

Back

27 inches is 67.5 centimeters (27 x 2.5).

Front

What is the total weight of 7 bags of groceries if 15 bags weigh 45 pounds?

Back

7 bags weigh 21 pounds (3 pounds per bag x 7 bags).

Front

How do you find the total amount spent after tax?

Back

Add the cost of items to the calculated sales tax.

Front

What is the percent decrease from $50 to $46?

Back

The percent decrease is 8%.