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Mathematics, 17.07.2019 00:40 ilovewaffles70

Heath and jaydon liked birdwatching and kept track of how many different species they saw at each site. in one day, they visited 5 different sites and saw an average of 7 species at each site. the day before, they saw 30 different species at 6 different sites. how many fewer species did they see at each site the day before?

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