Harriet is comparing the costs of calling cards. to use card a, the cost is $1.00 to connect and then $0.04 per minute. to use card b, it costs $0.65 to connect and then $0.06 per minute. for what number of minutes does it cost the same amount to use each card for a single call?

There are 17.5 minutes for which it costs the same amount to use each card for a single call.

Step-by-step explanation:

Let the number of minutes be x

To use card A, the cost is $1.00 to connect and then $0.04 per minute.

So, our expression becomes,

To use card B, the cost is $0.65 to connect and then $0.06 per minute.

So, our expression becomes,

According to question, if it cost the same amount to use each card for a single call, then it will be

Hence, there are 17.5 minutes for which it costs the same amount to use each card for a single call.

thats not a system of equations, that is a solution