The ratio of dogs to cats at an animal shelter is 3 to 2. How many dogs are at the shelter if there is a total of 30 animals?
Let
x-------> the number of dogs
y------> the number of cats
we know that
\(\frac{x}{y}= \frac{3}{2}\)
\(x= \frac{3}{2}y\) -------> equation A
\(x+y=30\) -------> equation B
substitute equation A in equation B
\(\frac{3}{2}y+y=30\)
\(\frac{5}{2}y=30\)
\(y=30*2/5=12\ cats\)
Find the value of x
\(x= \frac{3}{2}*12=18\ dogs\)
therefore
the answer is
\(18\ dogs\)
Answer: 18
Step-by-step explanation:
Given: The ratio of dogs to cats at an animal shelter is 3 to 2 or \(\frac{3}{2}\)
The total number of animals in the shelter = 30
Let the number of dogs at shelter be 3x and the number of cats be 2x.
Then according to the question, we have
\(3x+2x=30\\\\\Rightarrow\ 5x=30\\\\\Rightarrow\ x=6\)
Now, the number dogs at the shelter is given by :-
\(3(6)=18\)
Hence, the number of dogs at the shelter = 18