Raise c to the 3rd power, then triple the result
1 answer:
You might be interested in
Answer:
Speed of plane in still air = 825 km/h
Step-by-step explanation:
Given:
Speed of plane with the wind is 145 km/h faster than what it would have with still air.
Speed of plane with wind = 970 km/h
To find speed of plane in still air.
Solution:
Let speed of plane in still air be = km/h
Thus speed of plane with wind would be given as = km/h
Speed of plane with wind is given =970 km/h
So, we have:
Solving for .
Subtracting both sides by 145.
∴ km/h (Answer)
Thus, speed of plane in still air = 825 km/h
An equation is said to have a constant of proportionality if 'x' is a multiple of 'y' or 'y' is a multiple of 'x'.
Now, we have to determine an equation with constant of proportionality as '1'.
1.
This equation has constant of proportionality as ''.
2.
This equation has constant of proportionality as ''.
3.
This equation has constant of proportionality as ''.
4.
This equation has constant of proportionality as '1'.
Option D is the correct answer.