SOLUTION: Martina's penny bank is 2/5 full. After she adds 320 pennies, it is 2/3 full. How many pennies can Martina's bank hold?

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Question 1161637: Martina's penny bank is 2/5 full. After she adds 320 pennies, it is 2/3 full. How many pennies can Martina's bank hold?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
%282%2F3-2%2F5%29V=320, V for VALUE in pennies

%2810%2F15-6%2F15%29V=320

%284%2F15%29V=320

V=320%2815%2F4%29

V=1200