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Find the common difference and the next three terms of the given arithmetic sequence: 7, 8.5, 10, 11.5,…

Sagot :

[tex]7, 8.5, 10, 11.5,… \\\\common \ difference : \ \ 8.5-7=1.5 \\\\ 7, \\7+1.5=8.5\\8.5+1.5=10\\10+1.5=11.5\\11.5+1.5=13\\13+1.5=14.5\\14.5+1.5=16[/tex]
common difference - 1.50

13
14.5
16