Kim’s birthday party cost $10 plus $2 per guest. What expression represents the cost for n number of guests?
Question
Kim’s birthday party cost 2 per guest. What expression represents the cost for n number of guests?
Solution
The expression that represents the cost for n number of guests is 2n. Here's how we get it:
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The fixed cost of the party is $10. This is a one-time cost that doesn't change regardless of the number of guests.
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The variable cost is 2n.
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To find the total cost of the party, we add the fixed cost and the variable cost together. So, the total cost is 2n (variable cost).
So, the expression representing the cost for n number of guests is 2n.
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