Thread: Calculating body weight.

Sure. Here is my reply:

Code:

// answer

Just kidding.

A simple rule to estimate your ideal body weight is to allow 110 pounds for the first 5 feet of height...

Assume the person is at least 5 feet tall.

5 pounds for each additional inch.

Based on this information, you have a weight based on [a minimum of] five feet of height.

Also based on this information, you know how much to add to this amount for each "inch" of height.

"Feet" have to be converted to inches, which is then added to this amount as per the previous line of my post.

Try out these vague directions and show us what you come up with.

-thinks intently-...

Sorry...I got nothin'...

Are you just thinking about it in your head? Have you tried to sit down with a pen and paper? Some people (myself included) are better able to solve problems by scribbling on a sheet of paper - sometimes this helps find an answer.

There's not really much more I can say without giving away the solution, and I wouldn't want to do that because it would rob you of a learning experience.

I have. And I have gotten nowhere.

I'm sorry...call me stupid...but none of this is clicking for me...

Here's some up dated code:

Code:

#include <iostream>
using namespace std;

int main( )
{
    int feet;
    int inches;
    int ideal;
    
    cout << "Please enter how many feet tall you are: ";
    cin >> feet;

    cout << "Please enter the additional inches of your height: ";
    cin >> inches;

    //math equation
    ideal = 110 + (inches * 5);

    cout << "Your ideal body weight is: " << ideal << "\n\n";

    return 0;
}

It works, and I get the correct "ideal weight" for anything in the 5 foot range, but anything higher it will not compute. What am I missing?

This equation works for heights exceeding 5 feet, but not lower than 5 feet.

Code:

ideal = 110 + (inches * 5) + 60;

So looking at your instructions:

A simple rule to estimate your ideal body weight is to allow 110 pounds for the first 5 feet of height and 5 pounds for each additional inch. Write a program with a variable for the height of a person in feet and another variable for the additional inches and input values for these variables from the keyboard. Assume the person is at least 5 feet tall. For example, a person that is 6 feet and 3 inches tall would be represented with a variable that stores the number 6 and another variable that stores the number 3. Based on these values calculate and output the ideal body weight.

How would you allow 110 pounds for the first 5 feet of height?

How do you add 5 pounds for each inch over the initial 5 feet?

Jim

Do I need an "if" statement at all?

Probably not.

Remember this is a math problem, not really a programming problem. THINK MATH!

Jim

I have been thinking math. That's my problem. I just don't know what I am missing.