Proportions Review

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you calculate the total cost including tax?

Back

To calculate the total cost including tax, multiply the original price by the tax rate and add it to the original price.

Front

What is the formula to convert kilometers to miles?

Back

To convert kilometers to miles, divide the number of kilometers by 1.61.

Front

How do you find a percentage of a number?

Back

To find a percentage of a number, multiply the number by the percentage (in decimal form).

Front

What is the relationship between gallons and liters?

Back

1 gallon is approximately equal to 3.785 liters.

Front

How do you calculate a discount on an item?

Back

To calculate a discount, multiply the original price by the discount percentage (in decimal form) and subtract that amount from the original price.

Front

What is 30% of 80?

Back

30% of 80 is 24.

Front

How do you convert gallons to liters?

Back

To convert gallons to liters, multiply the number of gallons by 3.785.

Front

What is the total cost of an item after a 40% discount on an $85 jacket?

Back

The total cost after a 40% discount is $51.

Front

How do you calculate the total cost of multiple items?

Back

Add the prices of all items together, then apply any taxes or discounts.