How long would it take for John to burn off an entire pizza by walking if he burns 125 Cal in 30 minutes?

To determine how long it would take for John to burn off an entire pizza through walking, we first need to know the caloric content of the pizza in question. Let's assume the pizza contains approximately 2,000 calories, which is a common estimate for a whole pizza.

Given that John burns 125 calories in 30 minutes, we can find out how many calories he burns in one hour (60 minutes). Since 30 minutes is half an hour, the calorie burn in one hour would be:

[ 125 , \text{Cal} \times 2 = 250 , \text{Cal/hour} ]

Now, to find out how long it would take him to burn 2,000 calories at this rate, we can use the formula:

[ \text{Time} = \frac{\text{Total Calories}}{\text{Calories per Hour}} ]

Substituting the numbers we have:

[ \text{Time} = \frac{2000 , \text{Cal}}{250 , \text{Cal/hour}} = 8 \text{ hours} ]

Next, we convert 8 hours into hours and minutes. To be more precise, if John were to