February 22, 2017

Homework Help: math (patterns)

Posted by Anonymous on Wednesday, December 10, 2008 at 3:45pm.

Heres the problem:

Winchester's local toy store sells items according to its own pricing system. A doll costs $10, a toy train costs $20, a cradle costs $20, a jumping jack costs $30, and a Tickle Me Elmo costs $50. Using the same system, how much does a drum cost?

I know the answer is $10,but I HAVE to explain why. Any patterns you see?

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