Answer :
We know that we pay $50 up front for a computer costing $960, and that each week we pay $35. We want to know how many weeks will it take us to pay for the computer.
As we paid $50 at the start, at week zero we are
[tex]960-50=910\text{ dollars away from paying the computer}[/tex]Now, as we pay $35 each week, we divide the above value by $35, for knowing the number of weeks needed to pay:
[tex]\frac{910}{35}=26[/tex]This means, that it will take 26 weeks to pay for the computer, or also 6 months and 2 weeks.