The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 80 g |
45¢ |
75¢ |
Every additional 10 g |
15¢ |
35¢ |
Cody paid $1.85 for posting a package locally. What was the greatest possible mass of the package that Cody posted?
$1 = 100¢
$1.85 = 1.85 x 100 = 185¢
Amount that Cody paid for the additional sets of 10 g for the local package
= 185 - 45
= 140¢
Number of sets of 10 g that Cody paid for the local package
= 140 ÷ 10
= 14
Mass of 14 sets of 10 g for the local package
= 14 x 10
= 140 g
Greatest possible mass of the local package
= 80 + 140
= 220 g
Answer(s): 220 g