Answer:
an= 12 + (-6)(n-1)
Step-by-step explanation:
you should find two values: a1 and d
a1= first number =12
d= a number of the sequence mines the number of the sequence before the one you chose = 0-6 = -6
a1+(n-1)d= 12-6(n-1)
We have:
- 48 km ---------------- 6 liters of cng gas
- 112 km ---------------- ? liters of cng gas
So:
P/s: x is a quantity of cng gas will be needed to go 112 km.
Answer: 14 liters of cng gas
Ok done. Thank to me :>