maths
posted by Tomas on .
The enrollment of Kennedy High School dropped from 1200 to 1000 over a threeyear period. What the percent of decrease during this time?
A. 20
B 16 2/3
C. 25
D. 200
E. 2
My answer is 12001000=200
200/1200= 1/6 ( some wrong )

That's not the answer I got when I divided 200 by 1200.

You need to find the decimal answer. Use a calculator.

the decimal answer is 0.1666666

Right.
To find the percent, multiply:
0.1666666 * 100 = 16 2/3% 
oh, I get it now, thank you

Yay! :)
You're welcome.