CPM Homework Help : CC3 Problem 5-59

Mailboxes Plus sends packages overnight for $\$5$ plus $\$0.25$ per ounce. United Packages charges $\$2$ plus $\$0.35$ per ounce. Mr. Molinari noticed that his package would cost the same to mail using either service. How much does his package weigh?

Hint 1:

Write equations for both brands.

$y=$ total cost
$x=$ weight in ounces

Mailboxes Plus: $y=0.25x+5$
United Packages: Write a similar equation.

Hint 2:

Set the equations equal to each other to solve for $x$ .

Complete the tables in the eTool below to graph the results.
Click the link at right for the full version of the eTool: 5-59 HW eTool