In a bird sanctuary, 30% of the birds are hummingbirds. If there are about 350 birds in the sanctuary at any given time, how many are hummingbirds?
Mathematics · High School · Tue Nov 03 2020
Answered on
We know that we have a total amount of 350 birds in out sanctuary and 30% of them are humming birds.
Since the number of the hummingbirds is unknown we will call it X for now.
To find the percentage of a number, we just have to multiply them together.
First thing, express 30% as a fraction. We know that every percentage as a fraction is equal to the number itself divided by 100, so 30% = 30/100.
Lets divide 30/100 with 350 to find our X
30/100*350=x
Multiply the numerator with the number and the result divide it by the denominator.
We will have (30*350)/100 = x
10500/100=x
x=105 hummingbirds