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Andreas93 [3]
3 years ago
11

Tj owes $13.80 for text messaging in the month of March. If his text messaging complain cost $9 for the first 550 text messages

and .20 for additional text messages how many text messages did he send that month ?
Mathematics
1 answer:
Gelneren [198K]3 years ago
4 0

Answer: he sent 574 text messages that month

Step-by-step explanation:

Let x represent the number additional text messages that he sent that month.

If his text messaging complain cost $9 for the first 550 text messages and .20 for additional text messages, it means that the total cost of sending x text messages for a month would be

9 + 0.2(x - 550)

If Tj owes $13.80 for text messaging in the month of March, it means that

9 + 0.2(x - 550) = 13.8

0.2x - 110 = 13.8 - 9

0.2x = 13.8 - 9 + 110

0.2x = 114.8

x = 118.8/0.2

x = 574

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