In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.

How much money did they both have in their accounts in October?

Question

In October, Greg and Thomas had the same amount of money in their savings accounts. In November, Greg deposited $120 into his account. Thomas increased the money in his account by 20%. When they compared their balances, they found that they were still equal.
 
How much money did they both have in their accounts in October?

texaschic101 · Answer

x = starting balance

x + 120 = x + 0.20x
x + 120 = 1.20x
120 = 1.20x - x
120 = .20x
120/.20 = x
600 = x

check..
x + 120 = x + 0.20x
600 + 120 = 600 + 0.20(600)
720 = 720 (correct)

In October, they both had $ 600. In November, they both ended up with $ 720

anonymous · Answer

thank youu