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Mathematics, 05.09.2019 22:30 dereklilgoat

Kerri ran the same distance in four different races. her times were 18.04 seconds, 21.39 seconds, 12.99 seconds, and 14.14 seconds. if the individual times are rounded to the nearest one-tenth of a second, what is the estimate of kerri's total time for all four races?

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Kerri ran the same distance in four different races. her times were 18.04 seconds, 21.39 seconds, 12...
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