Math

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.

asked by Mary
  1. C = 75 + 5f.

    C is the dependent variable. It depends on the value of f.

    posted by Henry
  2. c = 75 + 5 f

    cost c depends on number of friends f

    posted by Damon
  3. This question could have been written another way around.
    Lets see how many friends Adrienne is can spend 5 dollars on in addition to spending 75 on the rental for amount in her budget c

    f = (c - 75)/5
    NOW f depends on c
    but the equation is really the same
    5 f = c - 75
    or
    75+5f = c

    posted by Damon

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