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25 February, 15:01

A student tries out for the track team and runs a lap in 45 seconds. The coach tells her she will have to cut her time by 50% to make the team. How fast must she run a lap to make the team?

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  1. 25 February, 18:28
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    Cutting her time by 50% means reducing her time by half. Half of 45 seconds is 22.5 seconds. Therefore, to make the team, she must run a lap in 22.5 seconds.
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