Solve for h: 21 = 9 + 3h.
A. 9
B. 4
C. 10
D. 36
2007-10-30 22:58:49 · 16 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Very simple question.
B is the right answer. i.e. h=4
2007-10-30 23:13:29 · answer #1 · answered by Indian Primrose 6 · 0⤊ 0⤋
B=4
3X7=21
21-9=12
12/3=4
3X4=12+9=21
2007-10-31 06:04:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4
2007-10-31 06:01:29 · answer #3 · answered by Marco P 2 · 0⤊ 0⤋
I would choose 4
Solution:
21= 9+3h
-3h=9+(-21)
(You will transpose the variables)
-3h= -12
3h/-3=-12/-3 (divide)
h= 4
2007-10-31 06:03:37 · answer #4 · answered by sadloner07 5 · 0⤊ 0⤋
B-4
21 = 9 + (3x4)
21 = 9 + 12
2007-10-31 06:02:49 · answer #5 · answered by Chels2009 2 · 0⤊ 0⤋
21=9+3h
h=4
2007-10-31 06:08:48 · answer #6 · answered by Brij 3 · 0⤊ 0⤋
subtract 9 from both sides
21 - 9 = 9-9 + 3h
12 = 3h
divide both sides by 3
12/3 = 3h/3
4 = h
so your answer is B
Good luck
2007-10-31 06:03:16 · answer #7 · answered by Anonymous · 0⤊ 0⤋
21 = 9 + 3h
21-9=3h
12=3h
12/3=h
h=4
ans is b)
2007-10-31 06:02:44 · answer #8 · answered by neha s 2 · 0⤊ 0⤋
simple...
I am not going to give you the answer though.
21 = 9 + 3h.
3h=21-9
3h=12
What is 12/4?
2007-10-31 06:03:24 · answer #9 · answered by james j 2 · 0⤊ 0⤋
21=9+3h
-3h=9-21
-3h=-12
-3 -3
h=4
B.4
2007-10-31 06:16:00 · answer #10 · answered by ashley 4 · 0⤊ 0⤋
21 = 9 + 3h
21-9=3h
12=3h
12/3=h
h=4
ans is b)
2007-10-31 07:10:23 · answer #11 · answered by rgankris 3 · 0⤊ 0⤋