If 10 items cost 90 dollars, what is the cost per item?

**Choice A is the best answer.** Cost per item = 90 / 10 = 9 dollars

**Choice A is the best answer.** Cost per item = 90 / 10 = 9 dollars

Set 3: Ratios Rates Proportions (Beginner)

Explanation

Answer: A

PROBLEM

If 10 items cost $90, what is the cost per item?

✓ Correct

Choice A is the best answer. Cost per item = 90 / 10 = $9

Why others are wrong:

B: 4 is incorrect because it does not satisfy the equation.

C: 7 is incorrect because it does not satisfy the equation.

D: 10 is incorrect because it does not satisfy the equation.