Question

Large Cheese Pizza $14.85
Large Supreme Pizza $16.90
Cheese Sticks $5.99
Dessert Pizza $6.99

Use the information above to answer the following question

3. A customer calls in a delivery order for 3 large cheese pizzas and 2 dessert pizzas. The customer wants to give a 20% tip to the delivery driver. Jacob says that $5 would be about 20%. Is this reasonable? Justify your response using estimation. If the answer is not reasonable, identify the error and then calculate the correct solution.

Answer 1

3 Large cheese + 2 dessert = 3(14.85) + 2(6.99)
 = 44.55 + 13.98
 = 58.53
20% tip = 0.2 x 58.58 = 11.706 = 11.71
No $5 is not reasonable because a 20% tip is 11.71. If the customer wants to pay 20% tip then he should pay 11.71 if he does not want to give change he should pay 20.00

Answer 2

$44.55 + $13.98 = $58.53

The total cost is $58.53. 5 pizzas x 58.53 = total. 20% would be $10 so $5 would be a small tip of 10%.

******I'll edit later