A runner burns $$ 2.91 imes 10^{3} \mathrm{~kJ} $$ during a five-mile run. How many nutritional Calories did the runner burn? 696 Cal $$ 6.96 imes 10^{5} \mathrm{Cal} $$ $$ 1.22 imes 10^{4} \mathrm{Cal} $$ $$ 1.22 imes 10^{1} \mathrm{Cal} $$ Submit Request Answer

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A runner burns $$ 2.91 	imes 10^{3} \mathrm{~kJ} $$ during a five-mile run. How many nutritional Calories did the runner burn? 696 Cal $$ 6.96 	imes 10^{5} \mathrm{Cal} $$ $$ 1.22 	imes 10^{4} \mathrm{Cal} $$ $$ 1.22 	imes 10^{1} \mathrm{Cal} $$ Submit Request Answer

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The runner burned approximately 696 Calories. To convert kilojoules (kJ) to nutritional Calories (Cal), we can use the conversion factor: $$ 1 \text{ Cal} = 4.184 \text{ kJ} $$ Given that the runner burns $$ 2.91 \times 10^{3} \text{ kJ} $$, we can convert this to Calories using the following formula: $$ \text{Calories} = \frac{\text{kJ}}{4.184} $$ Substituting the given value: $$ \text{Calories} = \frac{2.91 \times 10^{3} \text{ kJ}}{4.184 \text{ kJ/Cal}} \approx 696.0 \text{ Cal} $$ Thus, the runner burned approximately $$ 696 \text{ Cal} $$. The correct answer is: **696 Cal**

A runner burns \( 2.91 \times 10^{3} \mathrm{~kJ} \) during a five-mile run. How many nutritional Calories did the runner burn? 696 Cal \( 6.96 \times 10^{5} \mathrm{Cal} \) \( 1.22 \times 10^{4} \mathrm{Cal} \) \( 1.22 \times 10^{1} \mathrm{Cal} \) Submit Request Answer

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A runner burns \( 2.91 \times 10^{3} \mathrm{~kJ} \) during a five-mile run. How many nutritional Calories did the runner burn? 696 Cal \( 6.96 \times 10^{5} \mathrm{Cal} \) \( 1.22 \times 10^{4} \mathrm{Cal} \) \( 1.22 \times 10^{1} \mathrm{Cal} \) Submit Request Answer

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