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Charmaine's penny bank is 1/10 full. After she adds 400 pennies, it is 1/2 full. How many pennies can Charmaine's bank hold
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4 votes
Charmaine's penny bank is

1/10
full. After she adds
400
pennies, it is
1/2
full. How many pennies can Charmaine's bank hold

User Niqui
by
7.2k points

1 Answer

3 votes
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
User Zoubiock
by
7.0k points
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