Posted by Will on Sunday, February 10, 2008 at 9:52pm.
A store clerk wants to stack 55 cans of tennis balls in a triangular display. How many cans would be in the bottom row?
- 4th grade math - Anonymous, Sunday, February 10, 2008 at 10:21pm
answer is 10...i used guess and check ...!
- 4th grade math - Reiny, Monday, February 11, 2008 at 8:18am
Math is the study of patterns.
My first column is the sum of cans after so many rows,
the second column in the increase in the number of cans
Think of racking up billiard balls
....О О О
...О О О О
..О О О О О
.О О О О О О
О О О О О О О
О О О О О О О О
etc, do you see the pattern?
- 4th grade math - Anonymous, Monday, April 16, 2012 at 8:03pm
- 4th grade math - rebecca rosenjust, Wednesday, April 17, 2013 at 5:27pm
the answer i got was 7 tennis balls
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