Raven had $250 dollars in her saving 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 saving account. Using the properties of equality, solve how much money raven received in each birthday card
Let's assume the amount of money in each birthday card is x dollars.
Therefore, Raven received x dollars in each birthday card.
So, the total amount of money received from the three cards is 3x dollars.
Before depositing her birthday money, Raven had 250 dollars in her savings account.
After depositing her birthday money, she now has 340 dollars in her savings account.
So, the equation representing the total amount of money Raven had after depositing her birthday money is 250 + 3x = 340.
To solve the equation, we need to isolate the variable x.
Subtracting 250 from both sides of the equation, we get: 3x = 340 - 250 = 90.
Dividing both sides of the equation by 3, we get: x = 90 / 3 = 30.
Therefore, Raven received 30 dollars in each birthday card. Answer: \boxed{30}.