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Mary spent a total of $322.54 for a party. She spent $200.58 on food, plus an additional $30.49 for each hour of the party. How long was the party? A. 3 hours B. 5 hours C. 6 hours D. 4 hours

Respuesta :

Calculate the amount spent on the party duration:

Total cost - cost of food = cost of party duration

$322.54 - $200.58 = $121.96

Divide the cost of party duration by the cost per hour:

Cost of party duration / cost per hour = party duration

$121.96 / $30.49 ≈ 4 hours (rounded to nearest hour)

Therefore, the party was approximately 4 hours long. So the answer is D. 4 hours.

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