Mrs. Baca uses a phone card to call her relatives in Colombia. It costs her 45 cents to talk for 15 minutes. What is the call rate for the phone card? Show your work.

Answer: 3 cents per minute

Step-by-step explanation:

Call cost = 45 cents

Time taken on phone call = 15 minutes

Call rate = (Call cost / Time taken)

= 45 cents / 15 minutes

= 3 cents per minute

Thus, Mrs Baca call rate for the phone card is 3 cents per minute