Question

Predict the cost of a meal for a family of four between $55 and $100. Be sure to include dollars and cents. Part A: If the family has a 15% off coupon, calculate the new price of the meal. Show all work or explain your steps. (6 points) Part B: Calculate a 22% tip using the new price. What is the final cost of the meal? Show all work or explain your steps. (6 points)

Answer 1

A. between $46.75 and $85.00

B. between $57.04 and $103.70

Explanation:

You want the discounted price and final cost of a meal that has an original cost between $55 and $100 before a 15% off coupon is applied and a 22% tip is added to the reduced cost.

A. Discounted price

The price of the meal after the 15% coupon is used will be in the range ...

• $55 · 0.85 = $46.75
• $100 · 0.85 = $85.00

B. With tip

The final cost after adding the tip will be in the range ...

• $46.75 · 1.22 ≈ $57.04
• $85.00 · 1.22 = $103.70

The final cost of the meal will be between $57.04 and $103.70.

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