SOLUTION: hello, 1. Temperature conditions at the arctic pole changed from -15°F to -30°F during a 24-hour period. What was the percent of decrease? 2.School enrollments were 1,100 in 2

Algebra ->  Probability-and-statistics -> SOLUTION: hello, 1. Temperature conditions at the arctic pole changed from -15°F to -30°F during a 24-hour period. What was the percent of decrease? 2.School enrollments were 1,100 in 2      Log On


   



Question 879760: hello,
1. Temperature conditions at the arctic pole changed from -15°F to
-30°F during a 24-hour period. What was the percent of decrease?
2.School enrollments were 1,100 in 2012 and 1,330 in 2013. What was
the percent increase in enrollment from 2012 to 2013?
thank you!

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
1. 100%28-30-%28-15%29%29%2F15%29 % decrease 100% decrease
2. 100%28%281330-1100%29%2F1100%29 is the % Increase (note pattern of having Original in denominator)