Use Mathematical Models Involving Linear Inequalities
-A Woman Works Out $x$

Multiple Choice

Use Mathematical Models Involving Linear Inequalities
-A woman works out by running and swimming. When she runs, she burns 7 calories per minute. When she swims, she burns 10 calories per minute. She wants to burn at least 490 calories in her workout.
Graph 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 graph to quadrant I only.

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