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HELP PLZ TEXT MESSAGE: The cost of a text message increases from $0.10 per messages to $0.25 per message. What is the percent increase in the cost of sending a text message?​

Respuesta :

ecmccoy
x = number of text messages sent

0.2x+40=50

0.2x = 10

5(0.2x) = 5(10)

x = 50

Therefore, 50 text messages would have to be sent or received in order for the plans to cost the same each month.

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