SavannahP04
18.08.2019 •
Mathematics
If x + 3 is a multiple of 3, which of the
following is not a multiple of 3?
(a) x
(b) x + 6
(c) 6x + 18
(d) 2x + 6
(e) 3x + 5
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Ответ:
1)x
we have x so its -3
2)x+6
-3+6=3 its a multiple of 3 (3x1)
3)6x+18
6(-3)+18
0 is a multiple of 3 (3x0)
4)2x+6
2(-3)+6
0 is a multiple of 3
5)3x+5
3(-3)+5
-1 is not a multiple of 3
Ответ:
3½
Step-by-step explanation:
c/2 - 3 + 6/d
14c = 14
c = 1
3d = 3
d = 1
c/2 - 3 + 6/d
1/2 - 3 + 6
3½