Question

A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 8 calories per minute. She wants to burn at least 336 calories in her workout. Write an inequality that describes the situation. Let x represent the number of minutes running and y the number of minutes swimming. Because x and y must be positive, limit the boarders to quadrant I only.

Answer 1

Yes, @Jordanpinckney25 answer is correct! please do give him brainliest?

Answer 2

r=run (x-axis) and s=swim (y-axis)
7r+8s>=336 

8s>=-7r+336
x>=-(7/8)r+42
This is a solid line. If you put in 0,0 for r,s respectively, the inequality doesn't work, so that side of the line is not what you want, it is the other. Everything above the line in the first quadrant works.