Mary spent a total of $353.72 for a party. She spent $200.27 on food, plus an additional $30.69 for each hour of the party. How long was the party?

Answer 1

Let x be the number of hours of the party.

Mary spent $200.27 on food and an additional $30.69 for each hour of the party, so her total spending can be represented as: 200.27 + 30.69x = 353.72

Subtracting 200.27 from both sides, we get: 30.69x = 153.45

Dividing by 30.69 on both sides, we get: x = 5

Therefore, the party lasted for 5 hours.