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
marusya05 [52]
3 years ago
15

-k/7=-4 i dont know how to do one step equations

Mathematics
2 answers:
zepelin [54]3 years ago
8 0
Hello there!

To solve this equation for the variable k, you must isolate k so that it is set equal to a value. To start, first multiply both sides by 7 to get rid the 7 in the denominator:
7(-k/7)=7(-4)

This would result in -k=-28.

The next step would be to divide both sides by -1 as we still need to fully isolate the value of k:
-k/-1=-28/-1

This would result in your answer, k=28

Now, to check that 28 is the correct value of k, plug 28 back into the original equation to see if you get a result of -4=-4:

-(28)/7=-4
-28/7=-4
-4=-4

Now that you have confirmed k=28, you can conclude that that would be your answer.

Hope this helps!

AnnyKZ [126]3 years ago
5 0
-k/7 = -4

k/7 = 4

k = 7 × 4

k = 28
You might be interested in
ILL GIVE BRAINLY THIS IS THE WHILE QUESTION I FORGOT TO ADD THIS
Ne4ueva [31]
B. Situation A
C. Situation B

Explanation: Situation A has more students on the higher numbers.

Second Explanation: Situation B has numbers on the 70.
3 0
3 years ago
Scores of an IQ test have a bell-shaped distribution with a mean of 100 and a standard deviation of 12. Use the empirical rule t
MissTica

Answer:

A) 99.7% of people have an IQ between 64 and 136.

B) 5% of people have an IQ score less than 76 or greater than 124.

C) 16% of people have an IQ score greater than 112.

Step-by-step explanation:

The Empirical Rule tells us that, in a normal or 'bell-shaped' distribution, 68% of the data is one standard deviation from the mean, 95% of the data is two standard deviations from the mean, and 99.7% of the data is three standard deviations from the mean.

A) 64 and 136 are 3 standard deviations away from the mean, so 99.7% of people have an IQ between 64 and 136.

B) 76 and 124 are 2 standard devations away from the mean, but the answer is asking what percentage is not between them. 100% - 95% gives us 5%.

C) 112 is one standard deviation away from the mean. If we want to find the percentage greater, then we can do 100% - 50% (as 112 is to the left of the mean), then we can take half of 68 to get 34%, and after subtracting 50% and 34% from the 100%, we get 16%.

8 0
3 years ago
Please help me and can you explain thank you
Rufina [12.5K]

Answer:

(4,2), there is already a 4 in x value

Step-by-step explanation:

4 0
2 years ago
Can someone help for this question just this man​
Mnenie [13.5K]

Answer:

141°

Step-by-step explanation:

It's an octagon so the Sum of interior angles is: (8-2)×180=1080

5x+133+16+126+162-12+30=5x+455=1080

5x=625

x=125

x+16=141

4 0
2 years ago
Read 2 more answers
2/3 of a number is 28 what is that number​
Sidana [21]

Answer:

28×3÷2=14×2×3÷2=14×3=42

8 0
3 years ago
Other questions:
  • Sandra used her debit card to buy lunch for 8.74 on monday. On Tuesday, she deposited 8.74 back into her account. What is the ov
    11·2 answers
  • How am I supposed to solve this? I know how to do the equations but I don't know why there are only 2 places to put an answer fo
    9·1 answer
  • X^2+x-2/1-x^2 ÷ 2x^2-6x-20/x^2-4x-5
    11·1 answer
  • Fraction answer 21/3+13/4
    14·1 answer
  • Daisy making a memory box in the shape of the cube.The total volume is 216 cubic inches.What are the measurements of the length,
    15·1 answer
  • help please~!!! how many solutions does the equation 4y − 4y − 12 = 14 − 2 have? thanks! <3 first question will be marked as
    5·1 answer
  • WILL GIVE BRAINLIEST easy vocab!!!
    10·1 answer
  • Please help or i’m gonna fail my first simester class
    6·2 answers
  • Graph the systems of equations to find the solution.
    11·1 answer
  • Which product of prime polynomials is equivalent to 3x4 – 81x?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!