An infant weighs 6 lb, 6 oz at birth. Convert this weight to grams. Round to the nearest whole gram. Then convert the grams to kg. Round to the nearest tenth. At his wellness checkup, Jacob was told that as a healthy male adult, he should drink about 3 liters of fluid every day. Jacob asked how many cups of fluid that would be, and the physician replied that he should drink ___ cups of fluid per day. If the answer results in a mixed number, be sure to include a space between the whole number and the fraction. Example: 1 1/4 (read as one and one-fourth). Convert 279 lb to kilograms: ___ Round to the nearest tenth if needed. Use correct unit abbreviation. Sonya drank 4 oz of juice and 8 oz of milk for breakfast; for lunch, she had a 12 oz soda, then she drank another 12 oz soda mid-afternoon. For dinner, she drank 16 oz of water. How many liters of fluid did she drink? Do not round. Enter a numeric answer only. An infant weighs 6 lb, 4 oz at birth. In her first week, she gains 130 grams, and in her second week, she gains another 110 grams. At the end of the 2 weeks, she weighs ___. (State the answer to the nearest ounce.) Convert 1,560 mL to ounces: ___ Round to the nearest tenth if needed. Use correct unit abbreviation.
The Correct Answer and Explanation is:
1. Convert 6 lb 6 oz to grams and kilograms
- 1 lb = 16 oz → 6 lb 6 oz = (6 × 16) + 6 = 96 + 6 = 102 oz
- 1 oz = 28.3495 g → 102 oz × 28.3495 = 2891.649 g
- Rounded to the nearest whole gram: 2892 g
- Convert to kilograms: 2892 ÷ 1000 = 2.9 kg
✅ 2. Convert 3 liters to cups
- 1 liter = 4.22675 cups
- 3 liters × 4.22675 = 12.68025 cups
- Rounded to a mixed number: 12 3/4 cups
✅ 3. Convert 279 lb to kilograms
- 1 lb = 0.453592 kg
- 279 × 0.453592 = 126.553568 kg
- Rounded to the nearest tenth: 126.6 kg
✅ 4. Total fluid Sonya drank in liters
- Total ounces: 4 + 8 + 12 + 12 + 16 = 52 oz
- 1 oz = 0.0295735 liters
- 52 × 0.0295735 = 1.538822 liters
- Final answer: 1.538822
✅ 5. Infant weight gain over 2 weeks
- Initial weight: 6 lb 4 oz = (6 × 16) + 4 = 100 oz
- Total gain: 130 g + 110 g = 240 g
- 1 oz = 28.3495 g → 240 ÷ 28.3495 = 8.466 oz
- Final weight: 100 + 8.466 = 108.466 oz
- Rounded to nearest ounce: 108 oz
✅ 6. Convert 1,560 mL to ounces
- 1 oz = 29.5735 mL
- 1560 ÷ 29.5735 = 52.7 oz
📘 Explanation
Unit conversions are essential in healthcare, science, and everyday life. To convert between pounds and ounces, we use the relationship that 1 pound equals 16 ounces. For mass in grams, we multiply ounces by 28.3495, the number of grams in one ounce. This allows us to convert birth weights from imperial to metric units, which are standard in medical contexts.
When converting liters to cups, we use the fact that 1 liter equals approximately 4.22675 cups. This helps translate fluid intake recommendations into more familiar household measurements. For example, 3 liters is about 12 3/4 cups, which is easier for most people to visualize.
To convert pounds to kilograms, we multiply by 0.453592. This is useful for tracking body weight in countries using the metric system. For instance, 279 pounds is about 126.6 kilograms.
Fluid intake can also be tracked in liters. Sonya’s total fluid consumption was 52 ounces. Since 1 ounce equals 0.0295735 liters, multiplying gives us her total intake in liters, which was 1.538822.
Infant weight gain is often measured in grams. To find the new weight, we convert the gain to ounces and add it to the original weight. This ensures accurate monitoring of growth.
Finally, converting milliliters to ounces is common in medication dosing and nutrition. Since 1 ounce equals 29.5735 milliliters, dividing gives us the equivalent in ounces. For 1,560 mL, the result is 52.7 oz.
These conversions ensure consistency, accuracy, and safety in health-related decisions.
