a grocery store has a display of cans stacked in layers. The top layer has 1 can. Every other layer has 4 more cans than the layer above it. If there are 12 layers, use the formula for the sum of a finite series to find the number of cans in the display. showing your work is appreciated.

asked by Samuel

4 years ago

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1 answer

a = 1
d = 4
Sn = n/2 (2+4(n-1))

answered by oobleck

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Question

a grocery store has a display of cans stacked in layers. The top layer has 1 can. Every other layer has 4 more cans than the layer above it. If there are 12 layers, use the formula for the sum of a finite series to find the number of cans in the display. showing your work is appreciated.

1 answer

a = 1
d = 4
Sn = n/2 (2+4(n-1))

oobleck · Answer

a = 1 d = 4 Sn = n/2 (2+4(n-1))