Final answer:
To convert between units of mass, use the conversion factors: 1 g = 1000 mg, 1 mg = 1000 micrograms (µg), and 1 lb = 453.592 g. To convert milligrams to grams, divide by 1000; to convert mg to µg, multiply by 1000; to convert grams to pounds, multiply by 0.00220462; and to convert pounds to grams, multiply by 453.592.
Step-by-step explanation:
Conversions between different units of measurement are common in mathematics and can involve converting mass, volume, distance, and more. Here's how to complete the given conversions:
- To convert 235 mg into grams (g), divide by 1000 (since 1 g = 1000 mg). So, 235 mg = 235 / 1000 = 0.235 g.
- To convert 0.25 mg into micrograms (µg), multiply by 1000 (since 1 mg = 1000 µg). So, 0.25 mg = 0.25 * 1000 = 250 µg.
- Converting 0.155 g into milligrams, multiply by 1000. Thus, 0.155 g = 0.155 * 1000 = 155 mg.
- To convert 2500 g into pounds (lb), use the conversion factor (1 g = 0.00220462 lb). So, 2500 g = 2500 * 0.00220462 = 5.51 lb, keeping two decimals.
- For converting 0.02 lb into grams, use the conversion factor in reverse (1 lb = 453.592 g). So, 0.02 lb = 0.02 * 453.592 = 9.07 g, with two decimals.