Final answer:
Estimating values using sensible units for walking, nail thickness, and medicine amount.
Explanation:
Estimating Values Using Sensible Units:
- a. How long would it take to walk 1km? A reasonable estimate could be around 15-20 minutes per kilometer.
- b. How thick is a nail? Using a sensible unit, a nail could be approximately 3-4 millimeters thick.
- c. How much medicine is in one teaspoon? An estimate is that a teaspoon might hold about 5 milliliters of medicine.
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