Question

A question from my math class:

Jen and Sarah go to lunch at the Green Grill. Their meals total $28.00. The tax is 6%.

a. What is the total cost including tax?

b. Jen and Sarah want to leave a 20% tip based on the cost before tax. How much tip should they leave?

Answer 1

A) $29.68

B) $5.60

Explanation:

Part A Explanation)

To find the total cost including tax, you must multiply the total cost by .06 because .06 out of 1 is 6%. Quick explanation on percentages.

DO NOT FORGET TO ADD THE TOTAL COST

28.00 + (28.00 * .06) = 29.68

Part B Explanation)

This is asking only for the tip, not including the total cost. However, we need the total cost to calculate the tip.

28.00 * .20 = 5.6

.20 out of 1 is 20%