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Solve the Problem. -A Collection of Dimes Is Arranged in a Triangular Array

Question 32

Multiple Choice

Solve the problem.
-A collection of dimes is arranged in a triangular array with 11 coins in the base row, 10 in the next, 9 in the next, and so forth. Find the value of the collection.


A) $ 0.66
B) $ 13.20
C) $ 3.30
D) $ 6.60

Correct Answer:

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