DulceMariadelRosario DulceMariadelRosario

23-02-2022
Mathematics

contestada

21x =7?
A. x=3
B. None of these
C. x=147
D. x=28

Respuesta :

Snor1ax Snor1ax

23-02-2022

Answer: B

Step-by-step explanation:

To isolate x, you divide both sides by 21

21x=7

[tex]\frac{21x}{21}=\frac{7}{21}[/tex]

x = 7/21

Simplify by dividing both the numerator and denominator by 7

x = 1/3

Since, 1/3 is not an option, B is the correct answer

Answer Link

Otras preguntas

A force, 10 N drags a mass 10 kg on a horizontal table with an acceleration of 0.2 m/s2. If the acceleration due to gravity is 10 m/s2, the coefficient of frict

would 103° be the correct measurement for question 10?

urgent plzz help meeee thx I HAVE EXAMEEE

A cost is O something that is gained when a decision is made O something that is given up when a decision is made Oa rational decision Oa type of benefit

please help me please will give brainliest

Find the 9th term of the geometric sequence 9, 27,81.....

A. Directions: Put a (V) check if the statement is correct and cross X if it is incorrectI Woodblock printing is a technique best known for its use in the skyAR

what element finds the difference between two texts ?

write a factored equation that has a solution set of {-12, 15}

Please help!!!! The question is down below!