Answer:
D. 8.57
Step-by-step explanation:
Okay I'm not sure if I do these problems correctly, but I always get the right answer.
7/11 = 0.6363...
15/0.6363... = 23.5714...
23.5714...- 15 = 8.57
Step-by-step explanation:
We know that...
x+y (from the first pair) corresponds to 8(in the second pair)..
0 (from the first pair) corresponds to x-y (in the second pair)..
Hence,

By simply adding the two equations we get,

Hence,
By substituting x=4, we get that y=4
Hence,
x=y=4
Answer: 1.91293118277
Step-by-step explanation:
1) square root of 64-1 = 7
2)cube root of 7 = 1.91293118277