C
Expiation:
If x=6 and y=1, then 3y=3 and 1/2x=3. They are equal.
30 because 0.3 * 100 = 30
4hour.
<h3>Justification:</h3>
<u>We are given time takes to travel is inversely with an average speed</u>.
- When average speed is 40mph, it takes 2hour.
Then,
<u>If average speed is 80mph, let time taken be x</u>:
- 40/2 = 80/x
- 40x = 160
- x = 160/40
- x = 4
<u>Hence, it takes 4 hour to travel to a destination with 80mph</u>.
Answer:
y=-2/5x+2
Step-by-step explanation:
