Melissa earned a score of 75% on her first test. She wants to earn an 85% on her second test. What is the percent increase, rounded to the nearest whole number, from 75% to 85%?

Question

anonymous · Answer

Firstly, forget the percentage signs on the 75 and 85 - they're there to confuse you. 

85 / 75 = 1.133 

This means that if you multiplied 75 by 1.133, you would get 85. 

Since multiplying 75 by 1 would get 75, the other 0.13 means there's an extra 13.3%. 

So, there is an increase of 13.3%, rounded down to 13%, from 75% to 85%.