Question 1190158: sprint pcs offers a monthly cellular phone plan for $35. it includes 300 anytime minutes and charges $0.40 per minute for additional minutes. the following function is used to compute the monthly cost for a subscriber: c(x) = 35 if 0 < x ≤ 300 0.40x - 85 if x > 300 where x is the number of anytime minutes used. compute the monthly cost of the cellular phone for use of the following anytime minutes: 200
Answer by ikleyn(52809)   (Show Source):
You can put this solution on YOUR website! .
First, formula c(x) = 0.40x - 85 if x > 300 is INCORRECT in your post.
It should be c(x) = 35 + 0.40*(x-300) if x > 300.
Second, to the solution.
200 minutes is in the domain [0,300 minutes].
THEREFORE, apply FIRST formula c(200) = 35 dollars. ANSWER
Solved and thoroughly explained.
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