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kari74 [83]
3 years ago
13

Charmaine's penny bank is

Mathematics
1 answer:
dlinn [17]3 years ago
4 0
We shall take X as the total amount of cash her piggy bank can hold
therefore 1x/10+400=1x/2
400=1x/2-1x/10
we should make the denominator's the same
400=5x/10-1x/10
400=4x/10
400*10=4x
4000=4x
4000/4=X
1000=X
hope u found this useful
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