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question 48
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convert 15 mg to mcg
question 49
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convert 500 g to kg
question 50
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convert 250 g to mcg

Explanation:

Question 48

Step1: Recall the conversion factor

We know that \( 1\space mg = 1000\space mcg \).

Step2: Multiply by the conversion factor

To convert \( 15\space mg \) to \( mcg \), we multiply \( 15 \) by \( 1000 \). So, \( 15\times1000 = 15000 \).

Step1: Recall the conversion factor

We know that \( 1\space kg = 1000\space g \), so to convert grams to kilograms, we divide by \( 1000 \).

Step2: Divide by the conversion factor

To convert \( 500\space g \) to \( kg \), we do \( \frac{500}{1000}=0.5 \).

Step1: Recall the conversion factors

First, \( 1\space g = 1000\space mg \) and \( 1\space mg = 1000\space mcg \), so \( 1\space g=1000\times1000 = 1000000\space mcg \).

Step2: Multiply by the conversion factor

To convert \( 250\space g \) to \( mcg \), we multiply \( 250 \) by \( 1000000 \). So, \( 250\times1000000 = 250000000 \).

Answer:

\( 15000 \)

Question 49