Well we know that a mile is 5,280 feet and a KM is 3280.84 feet.
So that means we can calculate and say that 13 Miles is the same as 20.92 Km.
It's simple math. The answer is 2..
Primitevly do it like:
6v-13v-18=-81
- 7v= -63
v=9
P.S Strongly recommend to learn algebra's basics
If AC bisects < BAD, it means it cuts it into 2 equal parts
so < BAC = < CAD
3x + 12 = 5x
12 = 5x - 3x
12 = 2x
12/2 = x
6 = x
< BAC = 3x + 12.......3(6) + 12 = 30 degrees <===
354.9/9.1=39
So. elaine averaged 39 miles per gallon
