Answer:
![\large\boxed{n=\dfrac{4.6}{x}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Bn%3D%5Cdfrac%7B4.6%7D%7Bx%7D%7D)
Step-by-step explanation:
![nx-5=-0.4\qquad\text{add 5 to both sides}\\\\nx-5+5=-0.4+5\\\\nx=4.6\qquad\text{divide both sides by}\ x\neq0\\\\\dfrac{nx}{x}=\dfrac{4.6}{x}\\\\n=\dfrac{4.6}{x}](https://tex.z-dn.net/?f=nx-5%3D-0.4%5Cqquad%5Ctext%7Badd%205%20to%20both%20sides%7D%5C%5C%5C%5Cnx-5%2B5%3D-0.4%2B5%5C%5C%5C%5Cnx%3D4.6%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%7D%5C%20x%5Cneq0%5C%5C%5C%5C%5Cdfrac%7Bnx%7D%7Bx%7D%3D%5Cdfrac%7B4.6%7D%7Bx%7D%5C%5C%5C%5Cn%3D%5Cdfrac%7B4.6%7D%7Bx%7D)
A) 2
B) DNE
C) -2
I hope this answers your question but I’m not so sure of my answer!
Answer:
3x-4=2x+1 the answer is x=5
3x-4-2x=2x+1-2x the answer is x=5
x-4=1 the answer is x=5
x-4+4=1-4 the answer is x=-3
x=-3 is already the answer
Step-by-step explanation:
3x-4=2x+1
=3x-2x=1+4
=1x=5
=1x/1=5/1
=x=5
3x-4-2x=2x+1-2x
=3x-2x-2x+2x=1+4
=1x=5
=1x/1=5/1
=x=5
Answer:
a) 4 : 1 : 10
b) 25 : 9 : 13
c) 18 : 11 : 3
d) 2000 : 20 : 1
Step-by-step explanation:
We are to put the values in the form a : b : c
a) 40 ml, 1/100 l, 0.1 l
Put them all in ml (1 l = 1000 ml)
40ml, 10 ml, 100 ml
Therefore:
40 : 10 : 100
In lowest terms, 4 : 1 : 10
b) 2 1/2 kg, 900 g, 1.3 kg
Put them all in grams, (1 kg = 1000 g):
2500 g, 900 g, 1300 g
Therefore:
2500 : 900 : 1300
In lowest terms, 25 : 9 : 13
c) 1.5 hrs, 55 minutes, 1/4 hrs
Put them all in minutes (1 hour = 60 minutes)
90 minutes, 55 minutes, 15 minutes
Therefore:
90 : 55 : 15
In lowest terms, 18 : 11 : 3
d) 60 cm, 6 mm, 0.03 cm
Put them all in mm (1 cm = 10 mm)
600 mm, 6 mm, 0.3 mm
Therefore:
600 : 6 : 0.3
In lowest terms, 2000 : 20 : 1 (Divide by 0.3 because a ratio cannot be decimal)