Isabel sells new and used mystery novels online. Her customers are primarily in the United States. She sends up to 10 pounds of books in one shipment. She uses the United States Postal Service’s Media Mail service because it is inexpensive for her customers. Current Media Mail shipping prices for book shipments weighing 10 pounds or less appear below.

Question

Weight Not Over (lbs.)
Price
0
$0
1
$2.69
2
$3.17
3
$3.65
4
$4.13
5
$4.61
6
$5.09
7
$5.57
8
$6.03
9
$6.49
10
$6.95

How much would it cost to ship a package weighing 3.2 pounds? Explain how you arrived at your answer. (3 points)

Answer 1

To determine the cost to ship a package weighing 3.2 pounds using the United States Postal Service's Media Mail service, we need to refer to the shipping prices chart provided.

Since the weight of the package is 3.2 pounds, we look for the price corresponding to a weight "not over" 3 pounds. According to the chart:

• The price for 3 pounds is $3.65.
• The price for 4 pounds is $4.13.

Since 3.2 pounds is more than 3 pounds but under 4 pounds, it falls within the range covered by the price for 4 pounds.

Thus, the cost to ship a package weighing 3.2 pounds would be $4.13.