Answer:
The ratio of dogs to animals .
Step-by-step explanation:
If the shelter captures 9 dogs they also catch 7 cats.
So,
the total number of Animals = Total number of Dogs + Total number of Cats
=
=
Therefore,
The ratio of dogs to animals = Number of Dogs / Total number of animals
=
According to the profit equations given, it is found that since the number of days has to be a positive value, hence the viable answer is that they earn the same profit after 3 days, while the nonviable answer is -4.
<h3>What are the profit equations?</h3>For the first friend, it is:
For the second, it is:
.
The system we solve to find when they earn the same profit is given by:
Which is a quadratic equation with coefficients a = 1, b = 1, c = -12. Hence:
The number of days has to be a positive value, hence the viable answer is that they earn the same profit after 3 days, while the nonviable answer is -4.
More can be learned about a system of equations at brainly.com/question/24342899