At a pet store, it costs $5 to wash a cat and $7.50 to wash 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.

Let \(d\) represent the number of dogs washed.

The linear equation is:
\[ 5 \times 6 + 7.50 \times d = 60 \]

Solve for \(d\).

If you let x equal the number of cats washed and y equal the number of dogs washed then you can make the equation: 5x+7.5y=60 You can then put the number of cats washed into the equation: 5(6)+7.5y=60 30+7.5y=60 7.5y=30 y=4 So 4 dogs were washed

Answered by matthewhamill | 2024-06-24

To find how many dogs were washed, we set up the equation based on washing costs. After solving the equation, we found that 4 dogs were washed. Therefore, the answer is 4 dogs.
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Answered by matthewhamill | 2024-09-30