Question

Savemore National bank starts the day with 2.81 times 10^4 dollars in the vault. At the end of the day, the bank has 3.5 times 10^5 dollars in the vault. How much more money is in the vault at the end of the day than there was in the morning ?

Answer 1

ANSWER

There is

$3.219\times {10}^{5}$

more money in the vault in the evening than in the morning.

EXPLANATION

The amount of money in the vault in the morning is

$2.81 \times {10}^{4}$

The amount of money in the vault at the end of the day is:

$3.5 \times {10}^{5}$

To find how much more money is in the vault at the end of the day than there was in the morning, we subtract to get:

$3.5 \times {10}^{5} - 2.81 \times {10}^{4}$

$= 3.5 \times 100000 - 2.81 \times 10000$

$350000 - 28100= 321900$

Therefore, there is

$3.219\times {10}^{5}$

more money in the vault.