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4 years ago

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

Mathematics

1 answer:

Ilia_Sergeevich [38]4 years ago

6 0

3x = B
(x + 80 = 1/2B) * -3
-3x-240 = -3/2B

-240 = -1/2B
B=480 pennies

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