d. (17, 20)
Step-by-step explanation:
We have the following system of equations:
(1)
(2)
Isolating from (1):
(3)
Substituting (3) in (2):
(4)
Isolating :
(5)
(6)
(7)
Substituting (7) in (1):
(8)
(9)
Hence, the correct option is d. (17, 20)
goog may have it for you
14.3
step-by-step explanation:
add all the numbers together.
9 + 12 + 15 + 16 + 17 + 17 = 86
now, divide 86 by how many numbers we have: 6.
86 / 6 = 14.3