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
matrenka [14]
3 years ago
11

-5+4=3x-9 My teacher told me it was negative three.. can someone help?

Mathematics
1 answer:
Alexxx [7]3 years ago
4 0

Answer:

x = 8/3

Step-by-step explanation:

(When solving for a variable, always do the opposite of PEMDAS)

-5 + 4 = 3x - 9

-1 = 3x - 9

8 = 3x

8/3 = x

You might be interested in
Plzzz hellllpppppppp again lol
melomori [17]

Answer: D

Step-by-step explanation:

7 0
3 years ago
Convert 8 7/9 yard into in
ZanzabumX [31]

Answer:

316 in.

Step-by-step explanation:

12 inches = 1 foot

8 feet. = 96 inches

And, add 7/9 of a yard.

Your answer is 316 in.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Claire walked her dog 2 1/5 miles. Carson walked her dog 1 3/4 times as far as Claire did. How many more miles did Carson walk h
Anon25 [30]

The word "times" means you have to multiply.

2 1/5 times 1 3/4 is 3 17/20.

The phrase "how many more" means you have to subtract.

3 17/20 minus 2 1/5 is 1 13/20.

Carson walked her dog 1 13/20 more miles than Claire did.

Sorry for the lazy explanations Imao

6 0
3 years ago
The average student loan debt for college graduates is $25,150.
Aleks04 [339]

Using the normal distribution, it is found that:

a) X \approx N(25150, 12050)

b) There is a 0.5859 = 58.59% probability that the college graduate has between $14,200 and $33,950 in student loan debt.

c) Low: $23,519.65, High: $26,580.35.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 25150, \sigma = 12050.

Hence the distribution of X can be described as follows:

X \approx N(25150, 12050)

The probability that the college graduate has between $14,200 and $33,950 in student loan debt is the <u>p-value of Z when X = 33950 subtracted by the p-value of Z when X = 14200</u>, hence:

X = 33950:

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

Z = \frac{33950 - 25150}{12050}

Z = 0.73

Z = 0.73 has a p-value of 0.7673.

X = 14200:

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

Z = \frac{14200 - 25150}{12050}

Z = -0.91

Z = -0.91 has a p-value of 0.1814.

0.7673 - 0.1814 = 0.5859.

There is a 0.5859 = 58.59% probability that the college graduate has between $14,200 and $33,950 in student loan debt.

Considering the symmetry of the normal distribution, the middle 10% is between the 45th percentile(X when Z = -0.127) and the 55th percentile(X when Z = 0.127), hence:

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

-0.127 = \frac{X - 25150}{12050}

X - 25150 = -0.127(12050)

X = $23,519.65.

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

0.127 = \frac{X - 25150}{12050}

X - 25150 = 0.127(12050)

X = $26,580.35.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

5 0
2 years ago
1. if h(x)=(fog)(x) and h(x)=3sqrt7x+1, find f(x) and g(x)
xeze [42]

1. h(x) = 3\sqrt{7x+1}

Let f(x) = 3x  and g(x) = \sqrt{7x+1}  

2. N(x) = (\sqrt{2x})⁵

Let f(x) = x⁵  and g(x) = 2x  and h(x) = \sqrt{x}  

7 0
3 years ago
Other questions:
  • Given vectors A (2,-1,5), B (4,3,-2) &amp; C (5,4,0), find:?
    15·1 answer
  • A _____ is a section on a number line where few to no data points fall.
    10·1 answer
  • Please help math middle school level
    6·1 answer
  • Ramona went to a theme park during spring break. She was there for 8 hours and rode 16 rides. At what rate did Ramona ride rides
    13·1 answer
  • Dan bought 20 bunches of seedless green grapes for $48.00 . How many bunches can buy if she has $12.00?
    5·1 answer
  • PLEASE ANSWER ILL GIVE 50 POINTS AND BRAINLIEST!!!!!
    13·2 answers
  • John, Mark, and Sheila commute a total of 2 hours a day. John's commute is 0.5 of an hour longer than Mark's, and Sheila's commu
    11·2 answers
  • Need help on number 25!
    15·1 answer
  • Find the least 2-digit whole number N so that the sum 2^9+2^4+N is a perfect square.
    9·1 answer
  • Help me i dont understand?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!