Question

at a pet store, it costs $5 to wash a cat and $7.50 to was a dog. last week , the store made $60 from washing cats and dogs. if 6 cats were washed, write and solve a linear equation to find how many dogs were washed

Answer 1

There was 4 cats washed

Explanation:

1) Cats=x, Dogs=y

2) Equation: 5x+7.50y=60

3) Substitute: 5 x 6 + 7.50y=60

4) Algebra: 30+7.50y=60

7.50y=30

y=4 dogs