Mathematics, 24.02.2021 18:40, LlayahHarbin

Two people can complete 80% of a task in t hours, where t must satisfy the equation t/10 + t/15 = 0.8 How long will it take for two people to complete 80% of the task?

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Two people can complete 80% of a task in t hours, where t must satisfy the equation t/10 + t/15 = 0....