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Mathematics, 20.08.2019 21:40 Ivy2k

The ratio of north american butterflies to south american butterflies at a butterfly park is 5: 3.the ratio of south american butterflies to european butterflies is 3: 2. there are 30 north american butterflies at the butterfly park.
a. how many south american butterflies are there?
b. how many euro pean butterflies are there?
p. s. i think 18 south and 12 european not sure though

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