Question

A text message plan costs $3 per month plus $0.37 per text. Find the monthly cost for x text messages

The monthly cost of x messages is
dollars.
​

Answer 1

y= (.37)x + 3

Explanation:

1. Best thing to use would be y=mx + b.

2. Flat fee is $3 so that is your b.

• y=mx+ 3

3. Every additional message is $0.37, that is your slope(m)

• y=(.37)x + 3

4. That is your answer, x represents the number of text messages

Answer 2

The monthly cost for x messages is (3 + 0.37x)$.

Explanation:

We are given the following information in the question:

Monthly cost for text message = $3 per month

Cost of each text message = $0.37

Let x be the number of total text messages.

Monthly cost for x messages =

Formula:

`\text{Monthly charges} + (\text{Text messages}* \text{Cost of each message})\\\text{Putting the values, we get}\\= 3 + (0.37* x)\\=3 + 0.37x`

Hence, the monthly cost for x messages is (3 + 0.37x)$.