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Algebra
/ Linear equations in two variables
Difficulty: Easy
A producer is creating a video with a length of minutes. The video will consist of segments that are minute long and segments that are minutes long. Which equation represents this situation, where represents the number of -minute segments and represents the number of -minute segments?
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Explanation
Choice D is correct. Since represents the number of -minute segments and represents the number of -minute segments, the total length of the video is , or , minutes. Since the video is minutes long, the equation represents this situation.
Choice A is incorrect and may result from conceptual errors.
Choice B is incorrect and may result from conceptual errors.
Choice C is incorrect and may result from conceptual errors.