Question

In March, Isaiah and Freddie had the same amount of money in their savings accounts. In April, Isaiah deposited $210 into his account. Freddie increased the money in his account by 15%. When they compared their balances, they found that they were still equal.
How much money did they both have in their accounts in March?

Answer 1

Answer:

They both have in their accounts in March $1400

Step-by-step explanation:

They had the same amount of money in their savings in March.Next month, Isaiah deposited $210. At the same time, Freddie increased the money by 15%.

After that, they compared again, and they found that they were still equal. So, we can conclude that 15% of the initial amount is $210 because the money was the same in March and April.Now, we need to calculate 100%. We know 15% to be $210.

210 * (100/15) = 1400.

Finally, we can conclude that the initial amount for both corresponds to 100% and it is $1400. 

Answer 2

If they were equal both times they checked this means that 15% of their $ was equal to $210
so 15/100   = 210/x
so .15x=210
x=210/.15 
x = 1400