One-third cup of vanilla ice cream provides about 145 kcal of energy. A typical adult uses about 195 kcal/hr of energy while walking. If all of the energy in one third of a cup vanilla ice cream were to be burned off by walking, how many minutes would it take for this energy to be used?
1/3 cup = 145/3 = 48.3 kcal
48.3 kcal * 60 min/195 kcal
= 14.8 minutes
To answer this question, we need to compare the energy provided by one-third cup of vanilla ice cream to the energy used by an adult while walking.
First, let's calculate the energy provided by the ice cream. We know that one-third cup provides about 145 kcal of energy.
Next, we need to determine the energy used per hour while walking. The question states that a typical adult uses about 195 kcal/hr of energy while walking.
Now, let's calculate how long it would take to burn off the energy from the ice cream.
Step 1: Determine the energy used per minute.
To convert from hours to minutes, divide the energy used per hour (195 kcal/hr) by 60 (minutes in an hour):
195 kcal/hr ÷ 60 min/hr = 3.25 kcal/min
Step 2: Divide the energy provided by the ice cream by the energy used per minute to find the number of minutes it would take to burn off the energy.
145 kcal ÷ 3.25 kcal/min = 44.62 min (rounded to two decimal places)
Therefore, it would take approximately 44.62 minutes (or rounded to 45 minutes) to burn off the energy from one-third cup of vanilla ice cream through walking.