Final answer:
To find out the cost of each orange, we can set up a proportion using the given information and solve for the variable 'x'. By cross-multiplying and solving the equation, we find that each orange is worth $0.75.
Step-by-step explanation:
To find out how much each orange is worth, we can set up a proportion using the given information. We know that 3 oranges cost $2.25. Let's assign a variable, 'x', to the cost of one orange. The proportion would be: 3/2.25 = 1/x. We can solve this proportion with cross-multiplication: 3x = 2.25. To solve for 'x', we divide both sides of the equation by 3: x = 0.75. Therefore, each orange is worth $0.75.