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What’s the average speed in km/h of a boat that moves 15 km across a lake in 45 min?
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The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.
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Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?
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In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?
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What’s the average speed in km/h of a boat that moves 15 km across a lake in 45 min?...
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