Question

Arunner eats a snack with 375 Calories of nutritional energy. After her snack, she uses

3.16 X 106 joules while running [1 Calorie = 4184 joules).
Which of the following statements are true? Select all that apply.
A. There were 1.57 X 106 joules of energy in the snack.
B. There were 3.14 X 106 joules of energy in the snack.
C. During her run, she used 755 Calories of energy.
D. During her run, she used 189 Calories of energy.
E. The runner used more Calories while running than she consumed during her snack.
E The runner used fewer Calories while running than she consumed during her snack.

Answer 1

Step-by-step explanation:

1 Calorie = 4184 Joules

375 Calories = 1.57 x 10⁶ J .

So the snack had 1.57 x 10⁶ J . of energy .

So Option A is correct .

She uses 3.16 x 10⁶ J of energy

1.57 x 10⁶ J . = 375Calories

3.16 x 10⁶ J = 755 Calories.

So during the run she uses 755 Calories.

Option C is correct .

She consumed 375 Calories and used 755 Calories so she used more Calories while running .

E option is correct .