Raven had $250 dollars in her savings account. At her birthday party, she received three cards with the same amount of money inside. After depositing her birthday money, she now has $340 in her savings account. Using the properties of equality, solve for how much money Raven received in each birthday card.(1 point)
Let x be the amount of money inside each birthday card.
Raven received 3x dollars in total from her birthday cards.
She had 250 + 3x dollars before depositing her birthday money.
After depositing her birthday money, she had 340 dollars in total.
So, 250 + 3x = 340.
Subtracting 250 from both sides, we get 3x = 90.
Dividing both sides by 3, we get x = 30.
Therefore, Raven received $30 in each birthday card. Answer: \boxed{30}.