What percent of 80 is 90?
Mathematics · Middle School · Tue Nov 03 2020
Answered on
We know that 100% of 80, is 80 itself. In order to find out the percentage of 80 is 90, then we can just create a simple ratio. Lets call this percentage unknown X.
If 100% of 80 is 80,
Then x% of 80 is 90.
Lets cross multiply to create the equations, so 80 times x equal to 100 times 90.
80x = 100*90
80x=9000
Divide both sides with 80.
80x/80 = 9000/80
x = 112.5%
This result was expected because 90 is bigger than 80, so the result would normally be greater than 100%.