Start your trial now! First week only $4.99!*arrow_forward*

BuyFind*launch*

6th Edition

Stewart + 5 others

Publisher: Cengage Learning

ISBN: 9780840068071

Chapter 1.7, Problem 112E

To determine

The amount a customer can be overcharged or undercharged due to the possible inaccuracy in the scale.

Expert Solution

The amount a customer can be overcharged or undercharged lies in the interval *.*

**Given:**

The coffee merchant sells 3 lb of Hawaiian Kona at $ 6.50 per pound. The merchant’s scale is inaccurate within

**Calculation:**

The amount a customer will pay for 3 lb of Kona is obtained as follows.

Therefore, the amount a customer will pay for 3 lb of Kona is $19.5.

Note that, when the error is

Now, obtain the amount a customer will pay for 3 lb of Kona when the measuring error is

Similarly, obtain the amount a customer will pay for 3 lb of Kona when the measuring error is

Then, the cost of three pounds of coffee with error lies in the interval

Now, the amount a customer will pay for 3 lb of Kona when the measuring error is

And the amount a customer will pay for 3 lb of Kona when the measuring error is

Thus, amount a customer can be overcharged or undercharged lies in the interval *.*