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
SIZIF [17.4K]
3 years ago
11

Solve for x. 3 (2x + 7) = 15 (x - 4)

Mathematics
1 answer:
hjlf3 years ago
5 0
Answer = 9

Explanation :

I hope this helps !!!!

You might be interested in
A student researcher compares the heights of men and women from the student body of a certain college in order to estimate the d
maria [59]

Answer:

(0.6613, 8.3387)

Step-by-step explanation:

Let the heights of men be the first population and the heights of women be the second population. Then

We have n_{1} = 15, \bar{x}_{1} = 69.4, s_{1} = 3.09 and

n_{2} = 7, \bar{x}_{2} = 64.9, s_{2} = 2.58. The pooled

estimate is given by  

s_{p}^{2} = \frac{(n_{1}-1)s_{1}^{2}+(n_{2}-1)s_{2}^{2}}{n_{1}+n_{2}-2} = \frac{(15-1)(3.09)^{2}+(7-1)(2.58)^{2}}{15+7-2} = 8.68

The 99% confidence interval for the true mean difference between the mean height of the men and the mean height of the women is given by (if the samples are independent)

(\bar{x}_{1}-\bar{x}_{2})\pm t_{0.01/2}s_{p}\sqrt{\frac{1}{15}+\frac{1}{7}}, i.e.,

(69.4-64.9)\pm t_{0.005}2.946\sqrt{\frac{1}{15}+\frac{1}{7}}

where t_{0.005} is the 0.5th quantile of the t distribution with (15+7-2) = 20 degrees of freedom. So  

4.5\pm(-2.845)(2.946)(0.458), i.e.,

(0.6613, 8.3387)

5 0
3 years ago
(ZOOM IN TO SEE THE QUESTION) I need help!!!
Darina [25.2K]

Answer:

359 is your answer

Step-by-step explanation:

Have a good day ;-)

3 0
3 years ago
Read 2 more answers
ILL GIVE U BRAINLISTTT!!!!!
amm1812

Hi

exponnential cannot be negative.  So A is out  

quadratic function cannot also. So B is out.  

C is the only one remaining...

5 0
3 years ago
Read 2 more answers
Solve the Inequality: m+16>8m+2​
Setler [38]

Answer:

m<2

Step-by-step explanation:

To get to this, you first need to move the variable to one side, so you could subtract m from both sides to make the equation 16>7m+2. Next, you subtract 2 from both sides to make the equation into 14>7m. Finally, you would divide 7 from both sides to get 2>m, or m<2.

Hope this helps!

5 0
3 years ago
Apply the distributive property to create an equivalent expression. 1/2 ( 10 x + 20 y + 10 z )=
Sergio [31]

Answer:

5x+10y+5z

Step-by-step explanation:

Distributive Property means you multiply each component by the value you are distributing in this case: (1/2)(10x) + (1/2)(20y) + (1/2)(10z) which will yield 5x+10y+5z

6 0
3 years ago
Other questions:
  • If   x = − 6, which number line shows the value of |x|?
    8·2 answers
  • Find the constant variation for this equation. R=.51/d^2
    5·1 answer
  • The graph below shows the price of different numbers of hats at a store:
    13·1 answer
  • Graph the piecewise function.
    15·1 answer
  • Look at the picture............................
    5·1 answer
  • Write the trigonometric ratio as a fraction. Find the missing angles.<br> sin D = cosF=m
    7·1 answer
  • Question: Write a word problem that involves terms and coefficients. Discuss how you would go about solving this problem.
    7·1 answer
  • Find the surface area of the triangular prism shown below.
    7·2 answers
  • An article is bought for Rs200 &amp; sold for Rs250,what is the profit percentage.​
    7·2 answers
  • Geometry image attached will give brainliest
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!