if 1000ml milk = $3.50, how much is 200ml?

To find the cost of 200 ml of milk when 1000 ml costs $3.50, use the unit rate.

1. Calculate the price per milliliter:
   \[
   \text{Price per ml} = \frac{3.50}{1000} = 0.0035
   \]

2. Multiply this by 200 ml:
   \[
   0.0035 \times 200 = 0.70
   \]

Thus, 200 ml of milk costs $0.70.

Would you like more details or have any questions?

Here are 5 related questions:
1. How much would 750 ml of milk cost?
2. If you buy 1500 ml of milk, what will be the total cost?
3. How would the cost change if the price for 1000 ml increased to $4.00?
4. What would be the cost per liter (1000 ml) if the price was $2.80 for 800 ml?
5. How much would you save buying 2000 ml instead of two separate 1000 ml bottles?

**Tip:** To find the price of a smaller quantity, divide the total price by the total amount, then multiply by the smaller quantity.

Find out how to calculate the cost of 200 ml of milk when 1000 ml costs $3.50. Learn to apply unit rate and proportional reasoning to solve real-world problems. This problem is suitable for students in Grades 5-6.

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