Mathematics, 21.09.2019 23:30, pokenerdz

The average (arithmetic mean) weight of the students in the french club is 150 pounds, and the average weight of the students in the spanish club is 130 pounds. if no one is a member of both clubs, if the average weight of all the students is 142 pounds, and if there are 30 members in the french club, how many members are there in the spanish club?

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The average (arithmetic mean) weight of the students in the french club is 150 pounds, and the avera...