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
klasskru [66]
3 years ago
10

Find the value of x. X 5x - 9 3x + 15

Mathematics
1 answer:
padilas [110]3 years ago
8 0
5x - 9 = 3x + 15
2x = 24
x = 12
You might be interested in
janetta is working out a budget. she will save 3 cents for every dollar she earns. she earns 3,173.40 per month. how much will s
lilavasa [31]

Answer:

$95.20

Step-by-step explanation:

3 cents in a dollar is 3% or 0.03.

3% of $3,173.40 =

= 0.03 * $3,173.40

= $95.202

Answer: $95.20

6 0
3 years ago
A teacher has 36 students who were randomly assigned to 6 rows of 6 desks. She wants to survey the students
ivanzaharov [21]

Answer:

A

Step-by-step explanation:

Edge 2021

5 0
3 years ago
Brian answered 35 questions, or 70%, correctly on a test. James answered 90% of the questions correctly.
Vinil7 [7]
He answered 50 questions
3 0
3 years ago
What is the mixed decimal 17.45 as a mixed number and reduce to lowest terms
Hunter-Best [27]
17.45  =    17  <u>45</u>
                     100    and you can divide the numerator and denominator by 5

so the final answer is 17 <u> 9
</u>                                     20<u>
</u>
7 0
3 years ago
The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with mean value 30 mm and standard d
skelet666 [1.2K]

Answer:

z=-0.842

And if we solve for a we got

a=30 -0.842*7.8=23.432

So the value of height that separates the bottom 20% of data from the top 80% is 23.432.  

Step-by-step explanation:

Let X the random variable that represent the heights of a population, and for this case we know the distribution for X is given by:

X \sim N(30,7.8)  

Where \mu=30 and \sigma=7.8

For this part we want to find a value a, such that we satisfy this condition:

P(X>a)=0.80   (a)

P(X   (b)

As we can see on the figure attached the z value that satisfy the condition with 0.20 of the area on the left and 0.80 of the area on the right it's z=-0.842

If we use condition (b) from previous we have this:

P(X  

P(z

But we know which value of z satisfy the previous equation so then we can do this:

z=-0.842

And if we solve for a we got

a=30 -0.842*7.8=23.432

So the value of height that separates the bottom 20% of data from the top 80% is 23.432.  

8 0
3 years ago
Other questions:
  • What is the distance between the endpoints of the beams p and q? 3.2 inches 3.7 inches 4.2 inches 4.4 inches open study?
    12·1 answer
  • Ludwig borrowed $700,000 for a period of 2 years. His interest rate is 10%. How much interest will Ludwig pay in all?
    8·1 answer
  • -3x+11=4x+2-(2x-4)<br><br> Please solve this problem with work. <br> Thanks!
    15·2 answers
  • Given the following exponential function, what is the initial amount y 60(1.71)^x?
    11·1 answer
  • X : Y = 5 : 1<br> Write the equation as a function of X
    12·1 answer
  • Aline has a slope of -3 and a y-intercept of 3<br><br> what is the x-intercept of the line?
    9·1 answer
  • I'll give brainiest to the first person to respond BUT only if the answer is correct
    11·2 answers
  • I need help I'm stuck on this
    9·1 answer
  • 2.The number of grams A of a certain radioactive substance present at time, in yearsfrom the present, t is given by the formulaA
    9·1 answer
  • A total of ​$24,000 is to be invested in stocks and bonds. If the amount invested in bonds is three times that invested in​ stoc
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!