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Home > CC3 > Chapter 1 > Lesson 1.2.2 > Problem 1-58

1-58.

Mr. Wright was making a table to figure out how much it costs to send a certain number of regular letters through the mail. Use proportional reasoning to complete his table at right. Homework Help ✎

Number of Letters

Cost of Stamps

10

$4.50

2

$0.90

$6.75

7

1

500

$18.90

First set up the proportion.

Multiply by to get the number of letters. Repeat this strategy for all of the blanks within the table.

What did you multiply by to get ?

letters for