1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Allisa [31]
3 years ago
13

Solve for x 2/(7x) = 6/5 5/21 -21/5 21/5 I don't know - 5/21

Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0
The answer is:  [A]:  " \frac{5}{21} " .
________________________________________
Given: 

2/ (7x) = 6/5; 

→  (6/5) * (7x) = 2 ; 

42x / 5 = 2 ; 

42x = 2*5 ; 

42x = 10 ; 

42x /42 = 10/42 ; 

x = 10/42 = (10÷2) / (42÷2) = 5/21 ; 

x = \frac{5}{21} ;

→  which is:  Answer choice:  [A]:  " \frac{5}{21} " .
__________________________________________________
You might be interested in
Please show your work, Due at 11:30. Please help!!!
Sophie [7]

Answer:

1. 3217

x       56

_____________

19302

160850

__________

108152

2. 5690

x       27

_________

39830

113800

_________

153630

3. 213

      43

___________

639

8520

________

9159

Step-by-step explanation:

4 0
3 years ago
Me pueden ayudar a saber el resultado y la operacion de la ecuacion 8-5x=8+2x por favor me urge
Art [367]
Solve for x:
8 - 5 x = 2 x + 8
Subtract 2 x from both sides:
8 + (-5 x - 2 x) = (2 x - 2 x) + 8
-5 x - 2 x = -7 x:
-7 x + 8 = (2 x - 2 x) + 8
2 x - 2 x = 0:
8 - 7 x = 8
Subtract 8 from both sides:
(8 - 8) - 7 x = 8 - 8
8 - 8 = 0:
-7 x = 8 - 8
8 - 8 = 0:
-7 x = 0
Divide both sides of -7 x = 0 by -7:
(-7 x)/(-7) = 0/(-7)
(-7)/(-7) = 1:
x = 0/(-7)
0/(-7) = 0:
Answer: x = 0
6 0
3 years ago
Please help please and thank you
Katyanochek1 [597]

Step-by-step explanation:

\text{We know:}\\\\\sin(-\alpha)=-\sin\alpha\\\\\sin(\alpha\pm k\cdot360^o)=\sin\alpha\\\\===============================\\\\\sin(360^o-\theta)=\sin\bigg(-(\theta-360^o)\bigg)=-\sin(\theta-360^o)=-\sin\theta

3 0
3 years ago
Determine the slope of the line that passes through the points (-4, 6) and (0, 4).
slamgirl [31]

The slope of the line that passes through those points is: B) -1/2

5 0
3 years ago
HURRY plSSSSSSSSSSSSSSSSSSSSSS
snow_tiger [21]

Answer:

The unknown is 100

Step-by-step explanation:

A straight line is 180 degrees

We have two angles x, and 80

x+80 = 180

x = 180-80

x= 100

7 0
3 years ago
Other questions:
  • Find three consecutive even integers whose sum is 252
    6·1 answer
  • P x 1/3 = 6<br> what is p?<br> 2<br> 3<br> 9<br> 18
    5·2 answers
  • Rewrite with only sin x and cos x. sin 2x - cos 2x
    8·2 answers
  • What is x? I am no good at math and am trying to help a friend.
    11·1 answer
  • The number of hours that a nine month old baby sleeps at night are normally distributed with a population standard deviation of
    9·1 answer
  • What is the inverse of 5y+4= (x+3)2 + Ź?
    5·1 answer
  • Which real numbers are zeros of the function? f(x)=2x4−9x3+7x2+6x
    15·2 answers
  • PLEASE HELPPPPPPPPPPPPPPPPPPPP
    10·1 answer
  • In the diagram, which two angles are alternate interior angles with angle 14?
    8·2 answers
  • 1. In the first week, he spent $16 on lunches. How much was in his account then?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!