Question

What percent of 99 is 90?

Answer 1

91%

Explanation:

We can use the formula
`(is)/(of)=(percent)/(100)`

• "is" is 90
• "of" is 99
• "percent" is what we are solving for so we will denote it as x

Substituting in our values we get
`(90)/(99)=(x)/(100)`

• We will need to cross multiply here to get (90)(100) = (x%)(99)
• This simplifies to 9000 = 99x%
• Dividing by 99 on both sides we get 90.9% → x = 91%