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The ratio of north american butterflies two south american butterflies at butterfly park is 5:3. the ratio of south american butterflies to european butterflies is 3:2. there are 30 northamerican butterfly is at the butterfly fly park so how many south american butterflies are there

Respuesta :

welshfella
5 : 3 = 30:x   where x = number of south american butterflies

5/3 = 30 / x
5x = 90 
x = 18

there are 18 south american butterflies in the park

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