9x + 1 = 5x - 15
Subtract 1 from both sides.
9x = 5x - 16
Subtract 5x from both sides.
4x = -16
Divide both sides by 4.
x = -4
Answer:
Step-by-step explanation:
Let's call the initial point and the second point we can find the distance between these two points with the following formula:
And if we replace we got:
So since we know the time in order to reach the point R we can find the velocity like this:
And this velocity is constant along all the displacement.
Let's call the final point
And we can find the distance between the point R and F like this:
And if we replace we got:
Since the velocity is constant we can find the time between point R and F like this:
And we are interested on "When will it pick up the ball located at position (28,35)?" And then the total time would be:
The figure attached illustrate the problem.
Very sure 70,000 is the answer. used a calculator
Example:
3nsub3-4nsub2+9n-12