The zoo has 8 zebras, 4 lions, and 6 vultures in the Africa exhibit.
Equation
An equation is an expression that is used to show the relationship between two or more variables and numbers.
Let x represent the number of zebra, y represent the number of lions and z the number of vultures.
There are 18 total animals with 60 legs, hence:
x + y + z = 18 (1)
4x + 4y + 2z = 60 (2)
Also:
x = 2y
x - 2y = 0 (3)
From the 3 equations:
x = 8, y = 4, z = 6
The zoo has 8 zebras, 4 lions, and 6 vultures in the Africa exhibit.
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