A. a 90 degree counterclockwise rotation about the origin
Answer:
28
Step-by-step explanation:
2x-3y+z=-3 , x-5y+7z=-11 , -10x+4y-6z=28
15 km = 15,000 m
every 600 m, there is one water station (starting point at 600 m)
number of stations needed : 15000/600 = 25 water stations
Answer:
25 Times
Step-by-step explanation:
Answer:

Step-by-step explanation:
We want to find the rational number which is equal to
.
Let
....eqn(1)
Multiply both sides by 10
.....eqn (2)
Subtract eqn (1) from eqn (2)


Divide both sides by 9.
