Question

a nurse is preparing to administer a medication to a preschooler and must convert the childs weight from pounds to kilograms. the child weighs 30 lb. how many kilograms does the child weigh? (round the answer to the nearest tenth. use a leading zero if it applies. do not use a trailing zero.)

Explanation:

Step1: Recall the conversion factor

The conversion factor from pounds (lb) to kilograms (kg) is that \( 1\space lb \approx 0.453592\space kg \).

Step2: Multiply the weight in pounds by the conversion factor

The child's weight is \( 30\space lb \). So we calculate \( 30\times0.453592 \).
\( 30\times0.453592 = 13.60776 \)

Step3: Round to the nearest tenth

Rounding \( 13.60776 \) to the nearest tenth gives \( 13.6 \).

Answer:

\( 13.6 \)