Question

MEDAL AND FAN! (:
The given series has six terms. What is the sum of the terms of the series?
17 + 25 + 33 + . . . + 57

Answer 1

Same as:

(17 + 0) + (17 + 8) + (17 + 16) + . . . + (17 + 40)

= (17 + 0) + (17 + (8)(1)) + (17 + (8)(2)) + . . . + (17 + (8)(5))

= (6)(17) + 8(1 + 2 + 3 + 4 + 5)

= (6)(17) + 8(5)(6)/2

Answer 2

All good now, @emilyjones284 ?

Answer 3

btw, 1 + 2 + 3 + . . . + (n - 2) + (n - 1) + n = (n)(n + 1)/2

Answer 4

3(17+57)

Answer 5

Good luck in all of your studies and thx for the recognition! @emilyjones284

Answer 6

thanks and no problem!(: