Question

# " $$\begin{matrix} \text{Food (1 cup)} & \text{Calcium (\\% Daily Value)} & \text{Calories} & \text{Calories From Fat}\\ \text{Chocolate Milk} & \text{30} & \text{230} & \text{80}\\ \text{Low-fat Milk} & \text{35} & \text{110} & \text{20}\\ \text{Plain yogurt} & \text{35} & \text{110} & \text{35}\\ \end{matrix}$$ " -How many cups of low-fat milk provide 100% of the day's Daily Value for calcium?

Solution

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1 cup of low-fat milk provides 35% of daily calcium needs. To calculate how many cups of low-fat milk are needed to reach 100%, we have to divide 100 with 35:

$100\div35=2.9\approx3$

Approximately 3 cups of low-fat milk are needed to get 100% of daily calcium needs.

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