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Mathematics, 02.10.2020 15:01 tottresstrinity

The temperature in the ice rink must stay below 50° F. This morning the temperature was 68°F. The ice rink runs a cooling device, that can decrease the temperature by 4.5°every hour. How many hours will it take for the temperature to fall below 50°? * h ＜ 4
h ≤ 4
h ＞ 4
h ≥ 4

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