3. Don and Charlie decide to begin working out together at the gym. Don begins working out for 20 minutes and increases his workout by 5 minutes per week.
Charlie begins working out for 35 minutes and increases his workout by 3
minutes per week.
a. Write an equation to represent the number of minutes that Don works out,
m, as a function of weeks, w.
b. Write an equation to represent the number of minutes that Charlie works
out, m, as a function of weeks, w.
c. Using any means, determine the number of weeks it will take for Don and
Charlie to work out the same number of minutes.