Answer:
Step-by-step explanation:
Total distance /total time=total speed
600÷60=10hrs
300÷75=4hrs
I0-4=6
V=300÷6=50km/h
The value of k is 60
131 - 11 = 120
120/2 = 60
hope this helped !
The 3rd and 5th systems of equations are the answer.
Point A is at (3,-1), so all you do is input 3 for x and -1 for y into all the equations. For the systems to work, both equations must work with (3,-1).
Only the third and fifth boxes work.
To do this, change into common denominators. The common denominator is 21 so change the problem from 1/3 + 1/7 to 7/21 + 3/21. This gives you 10/21. It is already in simplest form.
