The zoo has lions, giraffes, and gorillas. 2/5 of the animals are lions and 3/10 of the animals are giraffes. What percentage are gorillas?
7/10
2/5+3/10=7/10
7/10 is not possible ....
2/5 or 40% are lions
3/10 or 30% are giraffes
leaving 30% for gorillas
1 - 4/10 - 3/10 = 3/10 = 30/100= 30%
To find the percentage of gorillas at the zoo, we need to determine the fraction of animals that are gorillas and then convert it into a percentage.
Let's start by finding the fraction of gorillas at the zoo. We know that the sum of the fractions of lions and giraffes is 2/5 + 3/10, which can be simplified as a common denominator:
2/5 + 3/10 = 4/10 + 3/10 = 7/10
So, 7/10 of the animals at the zoo are either lions or giraffes. To find the fraction of gorillas, we need to subtract this fraction from 1 (since the fractions together should make up the whole).
1 - 7/10 = 10/10 - 7/10 = 3/10
Therefore, 3/10 of the animals are gorillas.
To convert this fraction into a percentage, we can multiply it by 100:
(3/10) * 100 = 30%
Hence, 30% of the animals at the zoo are gorillas.