20,000 x 25 = 500,000
500,000 divided by 100 = 5,000 members are lost.
Members left = 15,000
Members added = 10,000
Members every year = Members left + Members added
= 15,000 + 10,000
= 25,000
1/7 is your answer. It can't be reduced any further. If there is supposed to be a problem, next time, add it.
<span>Point A with coordinates (x,y) rotated 180 degrees around O gives point A' with coordinates (-x,-y).
Hope this helps :D
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It means the speed (velocity) was constant - the object traveled the same distance per time period throughout the graph.