Which equation represents the partial sum of the geometric series? Σ(125)
=1
Ο 125 + 25 + 5 + 1
Ο 25+ 5+ 1 + 5
++1+3
5 25
26
1
1+
525 125
O O
* *
1
1
Ο
125+5+5+ 125

Ineed with this same question!

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.

7x the number of visitorsex. 3 visitors would be 7 x 3 =21$ total