Percent Proportions and Tax,Tip,Discount

Front

What is a percent proportion?

Back

A percent proportion is a way to express a relationship between a part and a whole in terms of percentage. It is often written as part/whole = percent/100.

Front

How do you calculate what percent one number is of another?

Back

To find what percent one number (part) is of another number (whole), use the formula: (part/whole) x 100.

Front

If 15 is what percent of 75, how do you solve it?

Back

(15/75) x 100 = 20%. So, 15 is 20% of 75.

Front

What happens to the price when sales tax is applied?

Back

Sales tax is added to the price of an item.

Front

What is the formula to calculate sales tax?

Back

Sales Tax = Price x Tax Rate.

Front

If a meal costs $12.00 and the tip is 25%, how do you calculate the tip?

Back

Tip = Meal Cost x Tip Percentage = $12.00 x 0.25 = $3.00.

Front

How do you calculate the amount saved when you receive a discount?

Back

Amount Saved = Original Price x Discount Rate.

Front

If you receive 25% off an item costing $22.00, how much do you save?

Back

Amount Saved = $22.00 x 0.25 = $5.50.

Front

What is the total cost of an item after applying sales tax?

Back

Total Cost = Original Price + Sales Tax.

Front

If Ralph buys a computer for $675 with a 6% sales tax, how do you find the total cost?

Back

Sales Tax = $675 x 0.06 = $40.50. Total Cost = $675 + $40.50 = $715.50.