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29 October, 01:26

At an intersection the red light times are normally distributed with a mean time of three minutes and standard deviation of 0.25 minutes. Approximately what percentage of red lights last between 2.5 and 3.5 minutes

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  1. 29 October, 01:40
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    5x+2x=7x

    Step-by-step explanation:

    they are like terms because they have the same variable/combination of variables in front of them.
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