A collection of dimes is arranged in a triangular array with 17 coins in the base row, 16 in the next, 15 in the next, and so fo

Question

2 years ago

14

rth.

2 answers:

Alona [7] · Answer 1 · 2022-09-02T00:11:07+03:00

Alona [7]2 years ago

8 0

Good evening ,

Answer:

<h2>153 dimes.</h2>

Step-by-step explanation:

1+2+3+...+17 = (17×18)/2 = (17×18)÷2 = 153 dimes.

it’s the sum of 17 terms of a geometric series.

:)

Neko [114] · Answer 2 · 2022-09-02T01:39:48+03:00

Neko [114]2 years ago

4 0

Answer:

153 dimes

Step-by-step explanation:

17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 153