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Charmaine's penny bank is 2/3 full. After she removes 160 pennies, it is 4/9 full. How many pennies can Charmaine's bank hold?

Charmaine's penny bank is 2/3 full. After she removes 160 pennies, it is 4/9 full. How many pennies can Charmaine's bank hold?
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2 votes
Charmaine's penny bank is 2/3 full. After she removes 160 pennies, it is 4/9 full. How many pennies can Charmaine's bank hold?

User Andrew Marin
by
8.1k points

2 Answers

6 votes
2/3 = 6/9

6/9 - 4/9 = 2/9

160÷2 = 80

80 = 1/9

80*9= 720 pennies
User Duoc Tran
by
8.6k points
4 votes
2/3X - 160 = 4/9X
2/3X - 4/9X = 160
6/9X -4/9X = 160
2/9X = 160
X =80x9
X = 720
User Mcornell
by
8.4k points
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