Question

One calling card has a $0.75 connection fee and charges $0.05 per minute.Another card has a $0.25 connection fee and charges $0.10 per minute. Afterhow many minutes would a call cost the same amount using either card?A. 50 minutesB. 25 minutesC. 10 minutesD. 5 minutes

Answer 1

Answer:

The correct option is C. 10 minutes

Explanation:

Let one card be Card A, and the other be Card B

Card A

$0.75 + $0.05x = y ............................(1)

Card B

$0.25 + $0.10x = y ............................(2)

Card A charges $0.75 and adds $0.05 per minute

Card B charges $0.25 and adds $0.15 per minute

The solution from (1) and (2) is shown below:

x = 10

y = 1.25