85.6k views
1 vote
Charmaine's penny bank is

1/3 full. After she adds 80 pennies, it is
1/2 full. How many pennies can Charmaine's bank hold?

User Med
by
7.8k points

2 Answers

7 votes
your final answer should be 480 pennies
User JohnSmith
by
8.7k points
1 vote
The first step would be to notice that 80 pennies= 1/6 of the penny bank, since 1/3=2/6 and 2/6+1/6=3/6 or 1/2. Since 80 pennies make up 1/6 of the bank then 80 times 6 would make up the whole bank. Final answer - 480 pennies
User Jogshardik
by
8.2k points