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
Mashutka [201]
3 years ago
10

How do you find x in the equation 3x+21=42 Plz help will mark brianltes

Mathematics
2 answers:
Rus_ich [418]3 years ago
4 0

Answer:

3x=21

X=7

Step-by-step explanation:

irinina [24]3 years ago
3 0

Answer:

X=7

Step-by-step explanation:

3x=21

x=7

You might be interested in
. Jessica went to the grocery store and purchased a box of cereal for $3.75, milk for $1.50, and bread for $2.25. She paid with
puteri [66]
$3.75 - cereal
$1.50 - milk
$2.25 - bread
—————————
$7.50

$20.00
- 7.50
—————
$ 12.50


She received $12.50 back
4 0
3 years ago
What is the equation in point−slope form of the line passing through (2, 2) and (4, 8)?
irina [24]
It is definitely (y-2)=3(x-2)
8 0
3 years ago
A rectangular courtyard has a length of 24 m and a width of 15 m. Find the perimeter of the rectangle defined by this courtyard.
pav-90 [236]

Answer: 78

Step-by-step explanation:

2(l · w)

2(24·15)

78

5 0
2 years ago
Identify the postulate that proves the triangles are congruent.
Ratling [72]

Answer:

ASA

Step-by-step explanation:

Triangle ABD is congruent to triangle BDC by ASA because angle B in ABD  is 30 degrees. Then they give you BD which equals BD by the reflexive property. And finally angle D in ABD is also 30 degrees. In triangle BCD, angle B is 30 degrees, BD = BD, and angle D in BCD is 30 degress. So we have an angle (B), side (BD), and another angle (D)

6 0
3 years ago
4log x-1/2log y+3log z
babymother [125]
Following rules of logs, we can do the following:

log x^4 - log y^(1/2) + log z^3

Combine the first and 3rd factors to get    log [x^4*z^3]

Seeing that the neg. sign signifies division, write this new term - log y^(1/2) as a quotient:

        [x^4*z^3]
log ----------------
           y^(1/2)

Next time, please include the instructions when you present your problem.
Thx.

7 0
3 years ago
Other questions:
  • A fire insurance company has high-risk, medium-risk, and low-risk clients, that have, respectively, probabilities 0.02, 0.01, an
    10·1 answer
  • These box plots show daily low temperatures for a sample of days in two
    7·1 answer
  • Which ordered pair is a solution of the equation y=3x?
    15·1 answer
  • 800 students attend Ridgewood Junior High School. 10% of students bring their lunch to school everyday. How many students brough
    12·1 answer
  • Based on the graph below, what is the total number of solutions to the equation f(x) = g(x)? (1
    9·1 answer
  • Solve for b. 13/b = 8/1 A. b=1.25 B. b=1.26 C. b=16.25 D. b=1.625
    14·1 answer
  • A parabola can be represented by the equation x2 = 2y. What are the coordinates of the focus and the equation of the directrix?
    7·1 answer
  • One lap around the park is 0.65 mile. Hal ran 4.5 laps. How many miles did Hal run?
    9·2 answers
  • Describe how to create a line of best fit
    15·1 answer
  • Determine the intercepts of the line.<br> y - 4= 72 – 6)<br> z-intercept:<br> y-intercept:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!