Mathematics, 10.07.2019 17:30 sakshimehta
How many gallons of a 20% acid solution should be mixed with 30 gallons of a 40% solution, to obtain a mixture of 30% acid solution.
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Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?
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How many gallons of a 20% acid solution should be mixed with 30 gallons of a 40% solution, to obtain...
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