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​On-the-Go Phone Company has two monthly plans for their customers. The EZ Pay Plan costs​ $0.15

per minute. The 40 to Go Plan costs​ $40 per month plus​ $0.05 per minute.
​a) Write an expression that represents the monthly bill for x minutes on the EZ Pay Plan.
​b) Write an expression that represents the monthly bill for x minutes on the 40 to Go Plan.
​c) Write an equation to represent the point at which the monthly bills for the two plans are equal.
​d) Solve the​ equation, showing each step.
​e) Interpret the solution of the equation within the context of the problem.

User Bruno Polo
by
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1 Answer

3 votes

Answer:

a. 0.15x

b. 40+0.05x

c. 0.15x=40+0.05x

15x=4000+5x

x=400 min

User Yan Foto
by
7.2k points