Question

Please help quickly 2. Ebony’s bank balance first reached $400 on Day 4. The last day her balance was $400 was Day 8.

(a) Determine . Explain how you determined these amounts.

(b) Estimate . Explain how you determined these amounts.

(c) Jade said that the amount of money Ebony took out of her account each day between Day 8 and Day 12 was the same amount of money she put into her account each day between Day 0 and Day 4. Recall that Day 12 is when the balance first reached $0. Without doing any calculations, how could you show Jade why that cannot be true?

Answer 1

Based on the above,  Ebony’s bank balance is $400 was Day 8 and this can be explained below.

• Note that Jade cannot be true be true because for every transaction made during withdraws, a little amount of money is collected and as such the amount will never remain $400.

How do you determined these amounts?

Note that the scenario for the above to occur is:

On day 4, her balance = $400

On day 5, her balance = $400

On day 6, her balance = $400

On day 7, her balance = $400

On day 8, her balance = $400

Another fact is that since she deposited 400 at first, on day 8, there will be 0 increase so the amount will still be 400.

Therefore, if the above is the case, one can deduce the fact that her balance will still be $400.

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