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hen you take a bath, how many kilograms of hot water (49C) must you mix with cold water (13C) so that the temperature of the bath is 37C?
hen you take a bath, how many kilograms of hot water (49C) must you mix with cold water (13C) so that the temperature of the bath is 37C? The total mass of water (hot plus cold) is 176 kg. Ignore any heat flow between the water and its external surroundings.