Question

Hello! Can someone pls help me out! It will be highly appreciated! Tysm and have a good day!

Answer 1

Donna's penny bank can hold 1080 coins.

Explanation:

Step 1:

Assume the total number of coins that Donna's penny bank can hold is x.

So in the beginning, it was
`(1)/(9)` full. So the number of coins were
`(1)/(9) x.`

After adding 240 pennies, it became
`(1)/(3)` full. So the number of coins are
`(1)/(3) x.`

So it can be written as
`(1)/(9) x +240= (1)/(3) x.`

Step 2:

So we need to determine the total number of coins that Donna's penny bank can hold i.e. the value of x.

`(1)/(9) x +240= (1)/(3) x, 240 = (1)/(3) x - (1)/(9) x = 0.22222x.`

`0.222x = 240, x = (240)/(0.22222) = 1,080.010.`

Rounding this off, we get that Donna's penny bank can hold 1080 coins.