Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Trouble setting up equation

  1. Dec 3, 2014 #1
    I am trying to set up an equation to find weight loss over time where the amount of exercise and number of calories consumed is constant. I am having trouble with it. The base amount of calories that your body burns every day (BMR) is based on your current weight. BMR is the base metabolic rate and is given by:
    BMR = 10*weight + 6.25*height -5*age + 5

    Weight loss (∆W) is given by:
    Initial weight - ((BMR + Exercise - Food intake)*∆days)/7700
    Wi - ((BMR+E-C)×∆d)/7700

    7700 is the calories in 1kg (just in case you were wondering). I am to assume that the calorie intake, the height and amount of exercise is constant. The age (in years) from BRM will be related to the days from the ∆W equation.
    Help is appreciated.
  2. jcsd
  3. Dec 4, 2014 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    What kind of trouble; you've listed all the information you wish to include, and relationships among the variables. Where's the sticking point? What information did you want to pull out?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook