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27.08.2019 •
Mathematics
Yves bought 420 tropical fish for a museum display. he bought 6 times as many parrotfish as angelfish. how many of each type of fish did he buy?
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Ответ:
Lets say that a single fish = x, so the equation is...
6x + 1x = 420
7x = 420 (divide each side by 7)
7x/7 = 420/7
x = 60
Parrot fish = 6x = 6*60 = 360
Angel fish = 1x = 1*60 = 60
Ответ: