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
Brrunno [24]
2 years ago
15

Select the correct answer.

Mathematics
2 answers:
arlik [135]2 years ago
6 0

Option B is correct

Why

3x=21

3(7) =21

21=21

Step-by-step explanation:

kolbaska11 [484]2 years ago
5 0

Answer:

-3x=21 , -7

Step-by-step explanation:

-3x=21\\x=\frac{21}{-3} =-7

You might be interested in
Yvonne is a salesperson who earns a fixed amount of $1,850 per month. She also earns a commission of 4% on the amount of goods t
stellarik [79]
Let the amount of dollars in goods sold be x, then her earning is 1850 + (4/100)x = 1850 + 0.04x.
For her to earn more than $2300, we have:
1850 + 0.04x > 2300
0.04x > 2300 - 1850
0.04x > 450
x > 450 / 0.04
x > $11,250
5 0
3 years ago
Read 2 more answers
Bakit di ako crush hahahsjdhdjdnshsksb​
blagie [28]

Answer:

Yes

Step-by-step explanation:

8 0
3 years ago
6. Find the coordinates of A if M-1, 2) is the midpoint of AB and B<br> has coordinates of (3.-5).
AlekseyPX

Answer:

A(-5,9)

Step-by-step explanation:

Let A(a,b)

Since M is the midpoint then of A(a,b) and B(3,-5) then

M( (a+3)/2 , (b-5)/2)

But it is given that M(-1,2)

So (a+3)/2 = -1 which implies a=-5

and (b-5)/2=2 which implies b=9.

Therefore A(-5,9)

4 0
3 years ago
3x+4=43<br> Translate into a sentence
Rus_ich [418]
Three x plus four equals forty three?
6 0
4 years ago
Read 2 more answers
What is the quadratic equation if the solutions are -9+ √65 /2, -9- √65 /2
liberstina [14]

Answer:

4x^2+72x+259=0

Step-by-step explanation:

If x_1 and x_2 are the solutions to the quadratic equation, then this equation can be written as

(x-x_1)(x-x_2)=0

In your case,

x_1=-9+\dfrac{\sqrt{65}}{2}\\ \\x_1=-9-\dfrac{\sqrt{65}}{2}

Then the equation is

\left(x-\left(-9+\dfrac{\sqrt{65}}{2}\right)\right) \left(x-\left(-9-\dfrac{\sqrt{65}}{2}\right)\right)=0\\ \\\left(x+9-\dfrac{\sqrt{65}}{2}\right)\left(x+9+\dfrac{\sqrt{65}}{2}\right)=0\\ \\x^2+9x+\dfrac{\sqrt{65}}{2}x+9x+81+\dfrac{9\sqrt{65}}{2}-\dfrac{\sqrt{65}}{2}x-\dfrac{9\sqrt{65}}{2}-\dfrac{65}{4}=0\\ \\x^2+18x+\dfrac{259}{4}=0\\ \\4x^2+72x+259=0

4 0
3 years ago
Other questions:
  • what type of number can be written as a fraction where p and q are intergers and q is not equal to zero
    7·1 answer
  • You have to pay to fix the sink. They are charging you $75 for parts and
    12·1 answer
  • A rope 16 feet long is cut into two pieces. one piece is used to form a circle and the other used to form a square. find a funct
    9·1 answer
  • What is 540 simplified
    10·1 answer
  • Please solve all the answers down below, and include how you got your answers.
    9·1 answer
  • Please help me solve question 9, a and
    6·2 answers
  • !!!20 POINTS!!!! NEED HELP
    13·1 answer
  • For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 8 N acts on
    15·1 answer
  • Circumference = ×What is another way to write this?
    8·1 answer
  • What is the sum of the first 40 positive odd integers?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!