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Social Studies, 11.10.2019 00:30 caggh345
At a park, there are 38 people playing tennis. some are playing doubles (2 teams of 2 people each) and some are playing singles (1 person against 1 person). there are 13 matches in progress. a doubles match requires 4 players, and a singles match requires 2 players. how many matches of each type are in progress?
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At a park, there are 38 people playing tennis. some are playing doubles (2 teams of 2 people each) a...
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