on a 100 pt math quiz 36 points can be earned by correctly completing division problems. how many points can be earned by comple
1 answer:
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Answer:
The sum of the first 880 terms in the sequence is 2,273,920.
Step-by-step explanation:
Arithmetic sequence:
The difference between consecutive terms is always the same, called common difference, and the nth term is given by:
In which d is the common difference.
Sum of the first n terms:
The sum of the first n terms of an arithmetic sequence is given by:
ai = ai-1 + 6
This means that
In this question:
Sum of the first 800 terms, so
First term is -53, so
The 880th term is:
Sum
The sum of the first 880 terms in the sequence is 2,273,920.
Answer:
(a) 150
(b) 384
(c) 84
(d) 261
(e ) 480
Step-by-step explanation:
(a)
Let 'a' be a number such that the half of his third is 25; i.e.
Hence, the number is 150.
(b)
Let 'b' be the number such that the quarter of his half is 48 i.e.
Hence the number is 384.
(c)
Let 'c' be the number such that the third quarter or, increased by 17 is 80.
Hence, the number is 84.
(d)
Let 'd' be the number such that its triplet, reduced by 28 is 755
Hence the number is 261.
(e
Let 'e' be the number such that double his third, increased by 80 is 400.
Hence, the value of the number is 480.