Apet store has 30 animals. some are cats the rest are dogs. the cats cost $50 each. the dogs cost $100 each. if the total for all 30 animals is $1900, how many cats are there?

There are 22 cats and 8 dogs.

Step-by-step explanation:

Let the cats be represented by = c

Let the dogs be represented by = d

Given, that the pet store has 30 pets.

First equation forms :

           ........(1)

Also given, the cats cost $50 each and dogs cost $100 each and the total for all is $1900. Now second equation forms:

    .........(2)

From equation (1) we get

Putting this value of c in equation 2:

=>

=>

Now,

So,

Hence, there are 22 cats and 8 dogs.

follow the perpendicular conditions m1=1/m2 x1=1 y1 =1