Answer:
x=9
Step-by-step explanation:
2/3x-1=5
Add 1 to each side
2/3x-1+1= 5+1
2/3x = 6
Multiply each side by 3/2
2/3x*3/2 = 6*3/2
x = 9
9) -8/3 = -8-0 / x - 1
so x = 4
10) -1/2 = 9-4 / -9-x
-1/2 = 5 / -9-x
9+x = 10
x = 10-9 = 1
Answer:
The average velocity of the car is 1.5 m/s
Step-by-step explanation:
The given parameters are;
The displacement of one of the cars north of the start after 5 seconds = 10 meters
The displacement of the car north of the start after 15 seconds = 25 meters
The average velocity of the cars
is given as follows;

Where;
Δx = The change in the displacement of the car = 25 m - 10 m = 15 m
Δt = The corresponding amount of the change in time 15 s - 5 s = 10 s
By substituting the known values of Δx and Δt in the equation for the average velocity of the car,
, we have;

∴ The average velocity of the car,
= 1.5 m/s
Answer: the correct answer is 65