Question
Xavier's timing for running in his first five heats were 58 s, 52 s, 54 s, 59 s, and 47 s. He wishes to improve his overall average timing by 2 s. What timing must he clock in the sixth heat?
2 m

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Xavier's timing for running in his first five heats were 58 s, 52 s, 54 s, 59 s, and 47 s. He wishes to improve his overall average timing by 2 s. What timing must he clock in the sixth heat?