Question

40% of the days in September were sunny how many days were sunny

Answer 1

For this case we know that september for any year have 30 days and that represent the 100% for the total of days on this month.

We know the condition that 40% of the days in September were sunny and we are interested in find the X number of days sunny, so we can apply this proportion rule

`(X)/(40)= (30)/(100)`

And solving for the value of X we got:

`X = (30)/(100)*40 = 12`

So then we can conclude that about 12 days in September were sunny for this case

Explanation:

For this case we know that september for any year have 30 days and that represent the 100% for the total of days on this month.

We know the condition that 40% of the days in September were sunny and we are interested in find the X number of days sunny, so we can apply this proportion rule

`(X)/(40)= (30)/(100)`

And solving for the value of X we got:

`X = (30)/(100)*40 = 12`

So then we can conclude that about 12 days in September were sunny for this case