The sum of the first 10 multiples of 3 is 165.
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∙ 2010-12-01 14:04:594 and 8 are multiples of 2. 6 and 9 are multiples of 3. 40 and 50 are multiples of 10.
10 + (-3) = 7 10 - (-3) = 13 10 and -3
Hiya, first 3 even multiples of 9 are: 18, 36, 54 -hope this helped.
hmm, 3,6,9,12,15 maybe
10 + 3x
10+20+30 = 60
5 + 10+15+20=50 ans
975
30
what are the first 3 multiples? 7 14 21 so add them together!
3 and 2
The first 3 multiples of 8 are: 8, 16, and 24.The first 3 multiples of 10 are: 10, 20, and 30.
Created in a spreadsheet, the answer is: 375750
3 + 6 + 9 + 12 = 30
4 + 8 + 12 = 24
It is: 8+16+24 = 48
Sum_ap = ½ × number_of_terms × (first_term + last_term) For the first 88 multiples of three: number_of_terms = 88 first_term = 1 × 3 = 3 last_term = 88 × 3 = 264 → Sum = ½ × 88 × (3 + 264) = 44 × 267 = 11748