The cost of shipping a 25-lb. box with ups is $25.50. if the weight, w, of the box may vary by no more than 3 pounds, what is the range of weights of a box that ships for $25.50?

Step-by-step explanation:

Let w represent weight of the box.

We have been given that the the cost of shipping a 25-lb. box with UPS is $25.50.

We will use tolerance formula to solve our given problem.

Using absolute inequality, if ; then

Therefore, the range of weights of a box is that ships for $25.50.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x