SOLUTION: Isabel's penny bank is 1/4 full. After she adds 400 pennies, it is 2/3 full. How many pennies can Isabel's bank hold?

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Question 1104741: Isabel's penny bank is 1/4 full. After she adds 400 pennies, it is 2/3 full. How many pennies can Isabel's bank hold?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
The 400 pennies is 2%2F3-1%2F4 of the bank's capacity.

2%2F3-1%2F4
8%2F12-3%2F12
5%2F12
-
x, capacity of bank in PENNIES
%285%2F12%29x=400
x=%2812%2F5%29%2A400
x=12%2A80
highlight%28x=960%29