SOLUTION: Cece scored a 78 on her first math test. She scored an 84 on her second test. What is the percent increase, rounded to the nearest tenth, from Cece’s first score to her second scor

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: Cece scored a 78 on her first math test. She scored an 84 on her second test. What is the percent increase, rounded to the nearest tenth, from Cece’s first score to her second scor      Log On


   

Question 427175: Cece scored a 78 on her first math test. She scored an 84 on her second test. What is the percent increase, rounded to the nearest tenth, from Cece’s first score to her second score?
Found 2 solutions by rfer, josmiceli:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
84-78=6
6/78=0.0769=7.7% increase rounded

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The increase is 84+-+78+=+6
Let x = percent gain
+x%2F100+=+6%2F78+
+78x+=+600+
+x+=+7.692+
7.7 percent increase