To find: the time spent on each machine
Answer to Problem 27E
Thus, 30 minutes should be spent on elliptical trainer and 10 minutes on stationary bike.
Explanation of Solution
Given:
There are 40 minutes to exercise
Need to burn 300 calories
Calculation:
Let
Rearranging,
The first equation for the relevant values is plotted in red colour and the second equation in blue colour.
In graph, it seems that (30,10) is solution of system of equations. Check if it is indeed the solution.
As the point satisfies both equations, it is solution of system of equations.
Thus, 30 minutes should be spent on elliptical trainer and 10 minutes on stationary bike.
Conclusion:
Thus, 30 minutes should be spent on elliptical trainer and 10 minutes on stationary bike.
Chapter 5 Solutions
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