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
Alja [10]
3 years ago
9

Please help me with this

Mathematics
2 answers:
NemiM [27]3 years ago
7 0
The answer is -3/4

Step by step:
-18=5x-3(3x+7)
-18=5x-9x-21
-18=-4x-21
4x=-21+18
4x=-3
x=-3/4
Dimas [21]3 years ago
6 0

Answer:

-9 3/4

Step-by-step explanation:

The last step is to simplify the fraction into a mixed one.

You might be interested in
When Carson runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard devia
just olya [345]

Given Information:  

Mean time to finish 400 meter dash  = μ = 65 seconds

Standard deviation to finish 400 meter dash = σ = 2.5 seconds  

Confidence level = 95%

Required Information:  

95% confidence interval = ?

Answer:  

 CI = 60 \: to \: 70 \: seconds

Step-by-step explanation:  

In the normal distribution, the empirical rule states approximately 68% of all the data lie within 1 standard deviation from the mean, approximately 95% of all the data lie within 2 standard deviations from the mean and approximately 99.7% of all the data lie within 3 standard deviations from the mean.

The confidence interval for 95% confidence limit is given by

 CI = \mu \pm 2\sigma

Since approximately 95% of all the data lie within 2 standard deviations from the mean. μ is the mean time Carson takes to finish 400 meter dash and σ is the standard deviation.

 CI = 65 \pm 2(2.5)

 CI = 65 \pm 5

 CI = 65 - 5 \: to \: 65 + 5

CI = 60 \: to \: 70 \: seconds

Therefore, the 95% confidence interval is between 60 to 70 seconds

What does it mean?  

It means that we are 95% confident that the Carson's mean to finish 400 meter dash is within the interval of (60, 70).

4 0
3 years ago
Question 7
Sedbober [7]

Answer:

1.27

Step-by-step explanation:

In Centimeter It's 127 Just Put A Decimal! :)

5 0
2 years ago
Luisa works at a gift shop. She receives a bonus if she sells at least 20 balloon bouquets in a month. Which graph represents th
suter [353]
Do you have an image of the graphs
5 0
3 years ago
Read 2 more answers
given a geomatric progression 2,6,18,54... find the smallest value of n such that the nth term is greater than 100000​
stiks02 [169]

Answer:

hello,

Step-by-step explanation:

u_1=2=2*3^0\\u_2=6=2*3^1\\u_3=18=2*3^2\\u_4=54=2*3^3\\\\....\\u_n=2*3^{n-1}\geq 100000\\\\3^{n-1}\geq 50000\\\\(n-1)*ln(3)\geq ln(50000)\\\\n-1\geq 9,848586...\\\\n\geq 10.848586....\\\\\boxed{n=11}\\

6 0
2 years ago
I need a answer for this question ASAP
Tasya [4]
It would be 27% ur welx 

5 0
3 years ago
Other questions:
  • A piano manufacturer has a daily fixed cost of $1,800 and a marginal cost of $2,2000 per piano. Find the cost C(x) of manufactur
    5·1 answer
  • What s the equation for y= (0,2) slope= -3/7
    14·1 answer
  • Raphael works 12 hours each week. He earns £4 per hour. Tom saves 1/3 of earnings each week. How many weeks does it take Tom to
    14·1 answer
  • 98 Points!!<br><br> Please help me.<br> Thank you.
    10·1 answer
  • 100 POINTS PLEASE PLEASE HELP I NEED THE ANSWER ASAPP ;(
    13·2 answers
  • Translation coordinate plane
    13·2 answers
  • If 4 quarts fill 16 cups then how many cups does 6 quarts fill
    10·2 answers
  • 3. How far does the ant crawl to get from the base of the cone to the top of the hill?
    11·1 answer
  • If triangle ABC is defined by the coordinated A(3,6), B(7,6), C(7,3) is dilated by a scale factor of 3, with resulting vertex A'
    7·1 answer
  • Is the answer right?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!