Asked by Will

A store clerk wants to stack 55 cans of tennis balls in a triangular display. How many cans would be in the bottom row?
Answered by Anonymous
answer is 10...i used guess and check ...!
Answered by Will
We also got ten, but we trying to explain it to a 9 year old for her schoolwork. That is where we are stuck.
Answered by Reiny
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 О О О

1
---2
3
---3
6
---4
10
---5
15
---6
21
etc, do you see the pattern?
Answered by Anonymous
i need help on fact families 6 and 5 pleaseeeeee answer me
Answered by Ronnie
Estimating Products Example 7multiply42 is close to 7 multiply ?
Answered by Anonymous
10
Answered by rebecca rosenjust
the answer i got was 7 tennis balls
Answered by Dieunie jean
There are 8 pencils in a package how many packages will be needed for 28 children if each child gets 4 pencils
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