Answer:
The correct option is;
Marissa can talk for at most 192 minutes
Step-by-step explanation:
The amount for which Marissa buys the prepaid cell phone card = $25
The charge for a phone call using the recharge card = $0.13 per minute
The greatest number of minutes Marissa can call is given by the the following inequality;
t < $25/($0.13/minute)
$25/($0.13/minute) = (192 + 4/13) minutes
Therefore;
t < (192 + 4/13) minutes
The cost of 192 minutes = 192 minutes × $0.13 per minute = $24.96
The amount of credit left on the $25 recharge = $25 - $24.96 = $0.04
The minimum charge for calls = $0.13
The amount remaining after 192 minutes $0.04 is less than the amount to make a call $0.13
Therefore;
t ≤ 192 minutes
Therefore, Marissa can talk for at most 192 minutes.
