Aphone plan costs $10 per month, +.03 per text message. john wants his phone bill to be less than $40, before taxes. what is the maximum number of text messages john can send

The maximum number of text message John can send is 100

Step-by-step explanation:

Given as :

The phone bill of the John = $ 10 per month + $ 0.3 per text message

John want his bill amount to be less than $ 40

Let The maximum number of text message John can send = n

According to question

The total bill amount = The cost of phone plan + rate of text message

I.e  $ 10 per month + $ 0.3 × maximum number of text message = $ 40

or, $ 0.3 × n = $ 40 - $ 10

Or, $ 0.3 × n = $ 30

∴  n =

I.e n = 100

So,  The maximum number of text message John can send = n = 100

Hence The maximum number of text message John can send is 100 Answer

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