Answer:
78/2 = 39
Step-by-step explanation:
- 8 and 4
These are the terms of a geometric sequence with a common ratio r
r =
=
=
= - 
the next 2 terms are obtained by multiplying the previous term by r
16 × -
= - 8
- 8 × -
= 4
Answer:
D
Step-by-step explanation:
Answer:
x = 7; y = 3
Step-by-step explanation:
I used the Trial and Error Method and found that x = 7 and y = 3
=> 7 + 3 = 10
=> 10 = 10. ✔
=> 7 - 3 = 4
=> 4 = 4. ✔
Therefore, x = 7 and y = 3
Hoped this helped.