Question

Algebra 1:

Video Games Jesse borrowed some money from his parents to buy an Xbox 360 with Kinect. After the first week he owes his parents $380, the second week he owes his parents $360, and the third week he owes his parents $340.
Write an explicit formula that models how much Jesse still owes his parents after n weeks.
How many weeks will it take Jesse to pay his parents back in full?

Answer 1

well after the first week is 380 which means that before the first week it was smth more. if we see the other weeks it is 20 less every week so before the first week it was 400

x=400-20n is the answer

and 20weeks

Answer 2

well after the first week is 380 which means that before the first week it was smth more. if we see the other weeks it is 20 less every week so before the first week it was 400

x=400-20n is the answer
and 20weeks