Question

# Naphtali’s cell phone company charges $0.25 per text plus a $10 flat fee. Asher’s cell phone company charges $0.10 per text plus a $25 flat fee. At how many texts are Naphtali and Asher paying exactly the same amount?

Hint:

- Hint:

○ Form the equation according to given information..

○ Take variable values as x or any alphabet.

○ Solve the equation to get value of x.

## The correct answer is: x = 100

- Step by step explanation:

○ Given:

Napthali cell phone company:

Charge per text = $0.25 and flat fee = $10.

Asher cell phone company:

Charge per text = $0.10 and flat fee = $25.

○ Step 1:

○ Let after x texts they pay same amount.

∴ amount Napthali pay for x texts will be,

10 + 0.25x

amount Asher pay for x texts will be,

25 + 0.10x

○ Step 2:

○ Equate the amount paid by Napthali and Asher after x texts.

10 + 0.25x = 25 + 0.10x

0.25x - 0.10x = 25 - 10

0.15x = 15

x =

x = 100

- Final Answer:

Hence, after 100 texts they will pay same amount.

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