Question

Convert kilograms to pounds using the proportion 1 kilogram = 2.2 pounds. How many kilograms are equal to 72 pounds? Round to the nearest tenth of a kilogram.(1 point)
Responses

158.4
158.4

32.7
32.7

144
144

3.27
3.27
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1 answer

To convert pounds to kilograms using the proportion \(1 \text{ kg} = 2.2 \text{ lbs}\), we first need to find out how many kilograms correspond to 72 pounds.

To do this, we can use the conversion equation:

\[ \text{kilograms} = \frac{\text{pounds}}{2.2} \]

Now, substituting 72 pounds into the equation:

\[ \text{kilograms} = \frac{72}{2.2} \approx 32.72727272727273 \]

Now rounding to the nearest tenth:

\[ 32.7 \text{ kg} \]

Thus, the number of kilograms that are equal to 72 pounds is 32.7 kg.