sat suite question viewer
Algebra
/ Linear equations in two variables
Difficulty: Easy
Jay walks at a speed of miles per hour and runs at a speed of miles per hour. He walks for hours and runs for hours for a combined total of miles. Which equation represents this situation?
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Explanation
Choice A is correct. Since Jay walks at a speed of miles per hour for hours, Jay walks a total of miles. Since Jay runs at a speed of miles per hour for hours, Jay runs a total of miles. Therefore, the total number of miles Jay travels can be represented by . Since the combined total number of miles is , the equation represents this situation.
Choice B is incorrect and may result from conceptual errors.
Choice C is incorrect and may result from conceptual errors.
Choice D is incorrect and may result from conceptual errors.