Question

Although not so common now, consider a phone plan that does not have unlimited texting. Your base plan costs you $30 a month and each text sent or received is only 12 cents. Write an equation to describe the total monthly cost of your bill with x text messages and y cost.

In one month 217,000 messages were sent between two brothers in Philadelphia. What was their approximate bill? (This is a true story!)

Answer 1

The bill will be $26070.

Explanation:

Your base plan costs you $30 a month

And each text sent or received is only 12 cents or $0.12.

Let the messages sent be = x

So, cost for messages become =
`0.12x`

Let total bill cost be = y

Now, total bill will comprise of monthly plan charges plus message charges.

So, equation forms:

`y=30+0.12x`

Now, given is that In one month 217,000 messages were sent between two brothers in Philadelphia.

So, their approximate bill will be :

`y=30+0.12(217000)`

=>
`y=30+26040`

=> y = 26070

Therefore, bill will be $26070.