Question
Manuel purchase a prepaid phone card for $45.00. call of 9 cents in minute using this card.The credit, C (in dollars), left on the card after it used for x minutes of calls is giving by the following.
C=45.00-0.09x
How much credit is left on the card after manuel uses it for 15 minutes of calls?
C=45.00-0.09x
How much credit is left on the card after manuel uses it for 15 minutes of calls?
Answers
GPT 3.5
To find out how much credit is left on the card after 15 minutes of calls, we substitute x = 15 in the equation C = 45.00 - 0.09x:
C = 45.00 - 0.09(15)
C = 45.00 - 1.35
C = <<45.00-1.35=43.65>>43.65
Therefore, there is $43.65 left on the card after Manuel uses it for 15 minutes of calls.
C = 45.00 - 0.09(15)
C = 45.00 - 1.35
C = <<45.00-1.35=43.65>>43.65
Therefore, there is $43.65 left on the card after Manuel uses it for 15 minutes of calls.