45 km* (2/3)= 30 km.
30 km of the highway is paved~
Answer:
20+4+0.02
Step-by-step explanation:
- You break down each number
- <em>Then you need to "add" them </em>
- <em>Then finally you add them together to make sure you have the right answer</em>
X^2 + kx + 15 = 0
3^2 + 3k + 15 = 0
9 + 3k + 15 = 0
24 + 3k = 0
3k = -24
k = -24/ 3
k = -8