Question

90% of the days in September were sunny.
How many days were sunny?

Answer 1

27 days in September were sunny because 30 x 90/100 = 27

Answer 2

Answer: 27 days

Step-by-step explanation: First, it's important to understand that there are 30 days in the month of september so what the problem is really asking us to do is to find out what is 90% of 30.

To find 90% of 30, first write 90% as a decimal by moving the decimal point two places to the left to get .90.

Next, the word "of" means multiply, so we have (.90)(30) which is 27.

This means that 27 days out of 30 days in September were sunny.