Question

The doctor recommended that Peter decrease the number of calories consumed from 2,500 to 1,800. By what percent did the number of calories decrease?

a) 20%
b) 28%
c) 40%
d) 28%

Answer 1

The percentage decrease in calorie consumption from 2,500 to 1,800 calories is 28%, which is calculated using the formula for percentage change.

Step-by-step explanation:

To determine the percentage decrease in calorie consumption when a doctor recommends that Peter decrease his intake from 2,500 calories to 1,800 calories, we use the formula for percentage change:

Percentage Decrease = ((Original Value - New Value) / Original Value) × 100%

In this case, the original value is 2,500 calories, and the new value is 1,800 calories. Thus:

Percentage Decrease = ((2,500 - 1,800) / 2,500) × 100%

Percentage Decrease = (700 / 2,500) × 100%

Percentage Decrease = 0.28 × 100%

Percentage Decrease = 28%

So, the number of calories decreased by 28%, which corresponds to option (b).