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
LenKa [72]
2 years ago
7

What is -2n-5k+8-4n-11=-7

Mathematics
1 answer:
Fittoniya [83]2 years ago
3 0

Answer:

n= 2/3 - 5/6k , ker

Step-by-step explanation:

-2n-5k+8-4n-11=-7

-6n-5k+8-11=-7

-6n=-7+3+5k

-6n=-4+5k

then divide both sides by -6 to get your answer

n= 2/3 - 5/6k , ker

You might be interested in
Choose the fragment which best completes the following sentence. Your credit history will help government agencies determine if
katovenus [111]
Either C or B because your credit helps alot with your home and also helps with credit cards. I'm leaning more towards C though.
6 0
2 years ago
How to solve a system of equations using elimination?
Nastasia [14]
If  you have a problem like: 
4x+2y=20
2x+2y=16
 You would subtract
4x-2y=20
-2x+2y=16
You would get the new problum
2x=4
You now want to divide the 2 on both sides to solve for x
x=2

Now that you've solved for X you want to solve for y. So use substitution to solve for y. You would want to substatute the x for the 2 in either of the problums. I'll use the first one.
4(2)+2y=20

You first want to multiply te 4(2) you would get a new problum.
8+2y=20

Now you want to subtract the 8 on both sides.
2y=12

The last step to solve for y is to divide the 2 on both sides.
Y=6

So your answers would be
x=2
y=6


5 0
3 years ago
Suppose the lifetime of a cell phone battery is normally distributed with a mean of 36 months and a standard deviation of 2 mont
solong [7]

Answer:

They should guarantee the lifetime of their batteries for 32 months.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 36 months and a standard deviation of 2 months.

This means that \mu = 36, \sigma = 2

If the company wants to replace no more than 2% of all batteries, for how many months should they guarantee the lifetime of their batteries?

The guarantee should be the 2th percentile of lengths, which is X when Z has a pvalue of 0.02. So X when Z = -2.054.

Z = \frac{X - \mu}{\sigma}

-2.054 = \frac{X - 36}{2}

X - 36 = -2.054*2

X = 31.89

Rounding to the closest month, 32.

They should guarantee the lifetime of their batteries for 32 months.

3 0
2 years ago
Weights of newborn babies are normally distributed with a mean of 7.452 pounds and
patriot [66]

Answer:

21

Step-by-step explanation:

8 0
2 years ago
2 4/10 + 3 5/8 = what does it equal
photoshop1234 [79]
2 4/10 + 3 5/8
= 6 1/40
4 0
2 years ago
Read 2 more answers
Other questions:
  • (8z^8/4z^4)^-4 please help me to solve this
    8·1 answer
  • Question 7 Multiple Choice Worth 1 points)
    7·1 answer
  • the length of a swimming pool is 22 ft. the width is 40 ft. if the volume of the pool is 2,500 ft, which equation would you use
    15·1 answer
  • Find the slope of the line that passes through<br> (10, 1) and (5,2)<br> -5<br> -1/5<br> 1/5<br> 5
    9·1 answer
  • BRAINLIEST ANSWER IS GOING TO BE GIVEN
    13·2 answers
  • What is the value of the expression below?<br> (5^1/2)^2
    7·1 answer
  • Rearrange this question and make the m as the subject
    9·1 answer
  • What is the solution to the system of equations
    11·1 answer
  • A lender estimates the closing costs on a home loan will be 3.75% of the loan amount of $120,000. the actual closing costs are l
    12·1 answer
  • What is the distributive property of32 +44 =
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!