Emily bought a shirt and a coat for $600. What does the shirt cost if it is one-third the price of the coat?
Step-by-step reasoning process below:
150
Let X be the price of the shirt.

The price of the coat is X * 3.

The total amount is X + X * 3 = $600.

Combining like terms, we get X * 4 = $600.

Dividing both sides by 4, we get X = $600 / 4 = $150.

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The final answer: 150