Posted by **Elizabeth** on Monday, February 18, 2008 at 4:46pm.

Entomology is the scientific study of insects. Patty, Ronny and Sammy collected some insects for their science project. At the end of the first week of collecting, Patty and Ronny together had 89 insects, Ronny and Sammy together had 80 insects, and Patty and Sammy together had85 insects. How many insects did each person have alone.

I get the main idea, but i just don't know how to write it out.

Thanks!!

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