Answer :
Sure! Let's solve the problem step-by-step:
1. Understand the Conversion: We need to convert grains to milligrams. We know that 1 grain (gr) is equivalent to approximately 64.8 milligrams (mg).
2. Identify the Order: The doctor ordered 1/2 grain of codeine.
3. Perform the Conversion: To convert from grains to milligrams, you multiply the number of grains by the conversion factor (since 1 grain equals 64.8 mg).
4. Calculate the Milligrams: Multiply 1/2 grain by 64.8 mg/grain:
[tex]\[
\frac{1}{2} \times 64.8 = 32.4 \, \text{mg}
\][/tex]
5. Find the Best Answer: Compare your calculated result of 32.4 mg with the options given.
The correct answer is b. 32.4 mg.
1. Understand the Conversion: We need to convert grains to milligrams. We know that 1 grain (gr) is equivalent to approximately 64.8 milligrams (mg).
2. Identify the Order: The doctor ordered 1/2 grain of codeine.
3. Perform the Conversion: To convert from grains to milligrams, you multiply the number of grains by the conversion factor (since 1 grain equals 64.8 mg).
4. Calculate the Milligrams: Multiply 1/2 grain by 64.8 mg/grain:
[tex]\[
\frac{1}{2} \times 64.8 = 32.4 \, \text{mg}
\][/tex]
5. Find the Best Answer: Compare your calculated result of 32.4 mg with the options given.
The correct answer is b. 32.4 mg.