Question

Adrienne had a party at a local bowling alley. She spent seventy-five dollars for the lane and five dollars per person for shoes. Let c be the total cost of the lane and shoes, and let f be the number of friends at her party. Write an equation to represent the problem. Which is the dependent variable? Explain.

Answer 1

c is total cost, and we have 2 sub totals one is the lane cost 75 and the other is 5f-the cost of 5 dollars times the no. of friends.
add up the sub totals to get the total.


c = 75 + 5f


The dependent variable is f, the number of friends, because it changes based on how many people come

Answer 2

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