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
maxonik [38]
3 years ago
7

3x = 21, then x = ? please help i dont really understand and te answer choices are 7, 18, 6

Mathematics
2 answers:
Oliga [24]3 years ago
8 0

if 3x = 21 all you have to do is divide both sides of the equation by 3

3x = 21

3x divided by 3 is x, and 21 divided by 3 is 7

so then you get x = 7

Anna [14]3 years ago
6 0

Answer:7

Step-by-step explanation:

Because 3x7=21.

You might be interested in
Use the fact that the bacteria is doubling every five
victus00 [196]

Answer:

I think it's 1/16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Kate sold 12 of her paintings and purchased 7 more. if kate has 21 paintings now, how many paintings did she have to begin with?
kicyunya [14]
First, let x or any variable represent the number of paintings Kate initially has. After selling 12 of it, her paintings now becomes only x - 12. Then, she purchased 7 more making the number of her paintings become x - 12 + 7 = x - 5. This number tantamount to 21. 

                                           x - 5 = 21      ; x = 26

Thus, Kate initially had 26 paintings. 
7 0
3 years ago
12.5 = 3x = 20
kotegsom [21]
The correct answer would be B
7 0
3 years ago
How many groups of 1 2/3 are in 4 1/3
Olegator [25]

Answer:

2. can not be 3 bc it would 5

Step-by-step explanation:

3 0
2 years ago
The bearing of Y from X is 63
zimovet [89]

Answer:

  • 117°

Step-by-step explanation:

<u>As per diagram:</u>

  • ∠NXY ≅ ∠XYZ as alternate interior angles since XN and YN are parallel and XY is transversal
  • m∠XYZ = m∠XZY = 63° since ΔXYZ is isosceles

<u>Find the measure of ∠YXZ:</u>

  • m∠YXZ = 180° - 2*63° = 54°

<u>Find the bearing of Z from X:</u>

  • m∠NXZ = m∠NXY + m∠YXZ = 63° + 54° = 117°
8 0
2 years ago
Other questions:
  • Pls help ASAP so I can't fail and show proof why you pick that answer!
    9·2 answers
  • What is the selling price of a $2,499 motorcycle if a $249 discount is given?
    8·2 answers
  • What is 2.6% written as a decimal
    8·2 answers
  • (j + 1)(2) simplify the expression
    5·1 answer
  • A news offers a subscription that costs $28.50 for 6 months. what is the unit price per month? Show your work. -Ratio
    14·1 answer
  • Please answer this it's pre-algebra I will give brainliest and thanks
    13·1 answer
  • What is the area of the triangle?<br> 8<br> 4<br> 5
    13·1 answer
  • Carson invested $850 in an account paying an interest rate of 5.7% compounded
    15·1 answer
  • 100 points!!!!!!!! A box contains 8 rings, 10 necklaces, and 4 pins. If Anya selects 1 piece at random, does NOT replace it, and
    12·1 answer
  • Can someone help me with this math equation:<br>f'(x)=-3x^2 +18x-10 ​​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!