Question

T-Mobile charges a flat fee of $20 plus $10 per Gig of data used per month. AT&T charges $60 for an unlimiteddata use. How many Gigs of data would you have to use so that the cost will be the same for both companies?

Answer 1

For this case we can set uo an equation given by:

`y=10x+20`

Where y represent the final cost. x the number of Gig used and for this case we can set up the following equation:

`60=10x+20`

And solving for x we got:

`x=(60-20)/(10)=(40)/(10)=4`

And the final answer for this case woudl be 4 Gig of data used