2007-03-09 22:51:27 · 11 answers · asked by Candy M 1 in Science & Mathematics ➔ Mathematics
N=6
divide both sides by 2.4 and you get
N-1=5
subtract -1 from both sides and you get N=6
There is no sense in doing the multiplication first. This is the simplest way to solve the problem and probably the way your teacher taught you.
2007-03-10 00:11:14 · answer #1 · answered by Steve T. 3 · 0⤊ 0⤋
4(n-1)=12 ==> n - 1 = 12/4 ==> n -1 = 3 ==> n = 3 +1==> n = 4
2007-03-10 07:02:22 · answer #2 · answered by physicist 4 · 0⤊ 1⤋
6
2007-03-10 07:16:19 · answer #3 · answered by rohgat 1 · 0⤊ 0⤋
2.4(n-1)=12
n-1 =12/2.4
n =5 +1
=6
Statement: n = 6
Dexter T
2007-03-10 07:06:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
2.4(n-1) = 12
(1) Multiply
2.4n - 2.4 = 12
(2) Transpose
2.4n = 12 + 2.4
(3) Add
2.4n = 14.4
(4) Divide both sides
2.4n/2.4 = 14.4/2.4
(5) Answer
n = 6
CHECK:
2.4(n-1) = 12
n = 6
2.4(6-1) = 12
2.4(5) = 12
12 = 12
2007-03-10 07:17:20 · answer #5 · answered by totzzz_636 1 · 0⤊ 0⤋
2.4 = 12/5
so 12/5 x (n-1) = 12
[12 x (n-1)]/5 = 12
12 x (n-1) = 60
n-1 = 60/12
n-1 = 5
n = 6
2007-03-10 07:02:07 · answer #6 · answered by rg 3 · 0⤊ 0⤋
2.4(n-1)=12
2.4n-2.4=12
2.4n-2.4-12=0
2.4n=14.4 then divide both sides by 2.4
therefore the answer for n=6
then check your answer by substituting n by 6-both sides should be equal to 12 if the answer is correct
2007-03-10 07:22:17 · answer #7 · answered by BETHUEL M 1 · 0⤊ 0⤋
the answer is 2.5 if that in (2.4(n-1)=12?) is 2into 4 or the answer is 1.5 if that in (2.4(n-1)=12?) is 2.4!!!!!!!!
2007-03-10 07:00:19 · answer #8 · answered by jaishu 1 · 0⤊ 1⤋
24.(n - 1) = 120
24 n - 24 = 120
24 n = 144
n = 6
2007-03-10 07:10:09 · answer #9 · answered by Como 7 · 0⤊ 0⤋
4(n-1)=12
dividing both sides by 4
n-1=3
adding 1
n=4
2007-03-10 06:58:52 · answer #10 · answered by duntoktomee 2 · 0⤊ 1⤋