Question

The Schwartz family spent a total of $111.75 for Internet service for 3 months. Each month they received $5.50 as a credit on the bill. Which equation and solution shows the cost of their monthly Internet service before the credit?

Answer 1

3(x+5.50)=111.75 . $31.75

Answer 2

The cost of their monthly Internet service before the credit is $31.75

The required equation =
`3(x+5.50)=111.75`

Explanation:

Let the monthly cost be x

Each month they received $5.50 as a credit on the bill.

The Schwartz family spent a total of $111.75 for Internet service for 3 months.

So, total cost of three moths =
`3(x+5.50)`

Since we are given that The Schwartz family spent a total of $111.75

So,
`3(x+5.50)=111.75`

`x+5.50=(111.75)/(3)`

`x+5.50=37.25`

`x=37.25-5.50`

`x=31.75`

Hence the cost of their monthly Internet service before the credit is $31.75

The required equation =
`3(x+5.50)=111.75`