Answer:

At the end of the 10 th week

Step-by-step explanation:

My team plays 3 games and lost all of them (12 $ ) in the first 4 week

so in 4 weeks my team lost 12 $ and all the games

Then total games in three weeks is 4 * 3 = 12

Total lost 12$ then we have a one dolar bet

In the 5th week my team wins 2$ ( two games ) and at the end of 5th week record is:

From 15 games my team won 2 games and lost 13 games and from that on, my team always wins 2 games then:

Let call x number of week after the 5th then

2 + 2*x / 15 + x = 0,6 0,6 = 60 %

Solving for x

2 + 2*x = 0,6 * ( 15 + x )

2 + 2*x = 9 + 0,6 *x

2*x - 0,6*x = 9 - 2

2*x - 0,6*x = 7

1,4*x = 7

x = 7/1,4

x = 5 weks later

Then the answer is 10 weeks

Techno the p*g,

I hope this was helpful