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butterflies

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Jenny, Charles and Chase have some butterflies 2016-09-26
Kyla pose la question :
Jenny cares 7 times as many butterflies as Charles. Charles catches 2 times as much as Chase. All together they have 560 butterflies. How many butterflies does each person have? Please help, I am very confused on how to solve the problem.
Thank you!

Penny Nom lui répond.
Whites and Sulphurs butterflies 2012-10-19
Arlene pose la question :
The Whites and Sulphurs are one major family of butterflies. There are about 720 varieties. Eleven times more Whites and Sulphurs live outside North America, mostly tropical Asia and Africa, than live inside North America. How many of this family of butterflies live in North America? How many live in the rest of the world?
Penny Nom lui répond.
 
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