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
statuscvo [17]
3 years ago
10

1. Solve the equation. 2. Check your solution. k÷3=21

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0

Answer:

k = 63

Step-by-step explanation:

3 x 21 = 63

You might be interested in
A system of equations is given below. y=1/2x-3 and -1/2x-3. Which of the following statements best describes the two lines?
pantera1 [17]

"They have different slopes but the same y-intercept, so they have one solution" is the statement which best describes the two lines.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equations:

           y=\left(\frac{1}{2} \times x\right)-3

           y=\left(-\frac{1}{2} \times x\right)-3

As we know that the slope intercept form of a line is  

                             y = m x + c  

So, from equation 1 and equation 2 we can see that

              m_{1}=\frac{1}{2} \quad \text { and } c_{1}=-3

              m_{2}=-\frac{1}{2} \text { and } c_{2}=-3

So, from the above expressions, we can say that both lines have different slopes but have same y – intercept with one common solution when x = 0.

4 0
3 years ago
Read 2 more answers
8h+7=6h-8 plz hurrrrryyyyyy and hellp
Kazeer [188]

Answer:

h=  −15  /2

Subtract 6h from both sides.

Subtract 7 from both sides.

Divide both sides by 2.

3 0
3 years ago
Why are linear functions sometimes symmetric about the y-axis but never symmetric about the x-axis
lina2011 [118]
Test for symmetry about the x-axis: Replace y with (-y). Simplfy the equation. If the resulting equation is equivalent to the original equation then the graph is symmetrical about the x-axis. Example: Use the test for symmetry about the x-axis to determine if the graph of y - 5x2 = 4 is symmetric about the x-axis.
Test for symmetry about the y-axis: Replace x with (-x). Simplfy the equation. If the resulting equation is equivalent to the original equation then the graph is symmetrical about the y-axis. Example: Use the test for symmetry about the y-axis to determine if the graph of y - 5x2 = 4 is symmetric about the y-axis.
I didn't fully understand the question but this is the best I can do! Hope this helps! :D
7 0
2 years ago
4(1/2x + 2) = 6
Goshia [24]
x=2. -5/6 have a great rest of your day
6 0
3 years ago
Solve using system of equations by using elimination method for -5x+4y=2 ; 9x-4y=6
jek_recluse [69]

Answer:

y = 3

x = 2

Step-by-step explanation:

-5x + 4y = 2

9x - 4y = 6

Sum both eq.

-5x + 9x = 4x

+4y - 4y = 0

2 + 6 = 8

then:

4x + 0 = 8

4x = 8

x = 8/4

x = 2

from the first eq.

-5x + 4y = 2

-5*2 + 4y = 2

-10 + 4y = 2

4y = 2 + 10

4y = 12

y = 12/4

y = 3

Check:

from the second eq.

9x - 4y = 6

9*2 - 4*3 = 6

18 - 12 = 6

6 0
2 years ago
Other questions:
  • Which of the following are a pair of vertical angles?
    8·1 answer
  • What is the solution for 3b + 17 less than or equal to 4b + 23 + 2b
    10·1 answer
  • 61. If one angle of a parallelogram measures 32, what are the measures of the remaining three
    11·1 answer
  • What is the value of x?
    12·1 answer
  • Don't mind the writings in pen, i didn't know what i was doing... PLS HELP ASAP​
    10·1 answer
  • Help giving brainless
    10·2 answers
  • Which choice is equivalent to the product below when x is greater than or equal to 0
    13·1 answer
  • F(x) = 2x-5<br> Complete the function table.
    5·1 answer
  • Which property is this an example of?
    14·2 answers
  • Find the value of variable X. <br><br> 16<br><br> 41<br><br> 10<br><br> 17.5
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!