Question

based on her weight and pace, samaira burns 740 calories when she bikes 8 miles. how many calories will she burn if she bikes 10 miles?

925
885
780
820

Explanation:

Set up the proportion

$$ \frac{740\text{ calories}}{8\text{ miles}} = \frac{x\text{ calories}}{10\text{ miles}} $$

Solve for x

$$ x = \frac{740 \times 10}{8} $$

Calculate the final value

$$ x = \frac{7400}{8} = 925 $$

Answer:

• 925 (Correct answer)
• 885
• 780
• 820