NEUROPHARMACOLOGICAL
09.11.2020 •
Mathematics
Determine whether each sequence is an arithmetic sequence. Write yes or no. Explain. 4, 7, 9, 12, ...
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Ответ:
no
Step-by-step explanation:
the sum of 4+7+9+12=32
32/4= 8
8 is not part of the sequence. Therefore its not arithmetic.
Ответ:
Number of sheep Mary owned = n
Number of sheep Sam owned = 4n
Mary buys 17 extra sheep, so
Sam sells 8 of his sheep so
Inequality becomes,
Solving the inequality we get,