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
cluponka [151]
3 years ago
14

4(3-2x)=15 please helppp

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

x = -3/8

Step-by-step explanation:

4(3-2x)=15

Distribute

12 -8x = 15

Subtract 12 from each side

12-8x-12 = 15-12

-8x =3

Divide each side by -8

-8x/-8 = 3/-8

x = -3/8

NikAS [45]3 years ago
4 0

\text{Solve for x:}\\\\4(3-2x)=15\\\\\text{Use the distributive property}\\\\12-8x=15\\\\\text{Subtract 12 from both sides}\\\\-8x=3\\\\\text{Divide both sides by -8}\\\\\boxed{x=-\frac{3}{8}}

You might be interested in
in 2012, the population of a city was 63,000. by 2017, the population was reduced to approximately 54,100. identify any equation
Akimi4 [234]

Answer:

<em></em>f(x) = 63000(0.97)^x<em></em>

<em></em>

Step-by-step explanation:

Given

f(0) = 63000 ---x = 0, in 2012

f(5) = 54100 -- x = 5, in 2017

Required

Select all possible equations

Because there is a reduction in the population, as time increases; the rate must be less than 1.

An exponential function is represented as:

f(x) = ab^x

Where

b = rate

rate > 1 in options (a) and (b) i.e. 1.03

This implies that (a) and (b) cannot be true

For option (c), we have:

f(x) = 63000(0.97)^x

Set x = 0

f(0) = 63000(0.97)^0 = 63000*1=63000\\

Set x = 5

f(5) = 63000(0.97)^5 = 63000*0.8587=54098.1 \approx 54100

<em>This is true because the calculated values of f(0) and f(5) correspond to the given values</em>

For option (d), we have:

f(x) = 52477(0.97)^x

Set x = 0

f(0) = 52477(0.97)^0 - 52477* 1 = 52477

<em>This is false because the calculated value of f(0) does not correspond to the given value</em>

For option (e), we have:

f(x) = 63000(0.97)^\frac{1}{5x}

Set x = 0

f(0) = 63000(0.97)^\frac{1}{5*0} = 63000(0.97)^\frac{1}{0} =undefined

<em>This is false because the f(x) is not undefined at x = 0</em>

For option (f), we have:

f(x) = 52477(0.97)^{5x

Set x = 0

f(0) = 52477(0.97)^{5*0} = 52477(0.97)^0 =52477*1= 52477

<em>This is false because the calculated value of f(0) does not correspond to the given value</em>

<em>From the computations above, only (c) </em>f(x) = 63000(0.97)^x<em> is true</em>

4 0
3 years ago
There are 7 oak trees currently in the park park workers had to cut down 2 oak trees that were damaged how many oak trees will b
Paha777 [63]
There would be five trees left
3 0
3 years ago
Read 2 more answers
You successfully completed statistics, and the Math Department Chair recruited you to be a tutor. It’s day one on the job, and y
zvonat [6]

Answer:

Step-by-step explanation:

Ok, so we have to help your pupil (lets call her Jane) figure out "why researchers should use a random sample to conduct a survey". So, i will list all of the choices.

  • A random sample is likely to avoid bias
  • In a random sample some members of the population are more likely to be selected than others
  • Random samples provide consistency and systematically favor one choice over every other choice in each survey question
  • Random sampling will provide a more representative sample of population
  • Researchers can use a random sample to draw conclusions about the population

Random sampling is used to get the best average, and not favor any one opinion. For example, if you were trying to figure out the daily spending budget of people, you wouldn't just go to the upper clas part with all the rich people, you would survey from all over the town to get results from all kinds of people. So, the answers are:

  • A random sample is likely to avoid bias (because thats exactly what they do)
  • Random sampling will provide a more representative sample of population (because they are designed to do that)
  • Researchers can use a random sample to draw conclusions about the population (thats why they take the samples)

Hope this helps

4 0
3 years ago
The area of a rectangle is 30 + 12x. List at least 3 possibilities for the length and width of the rectangle.
Gala2k [10]

Answer:

Below in bold.

Step-by-step explanation:

Area  = 30 + 12x and area is also = to width * length so we need to look for factors of 30 + 12x.

30 + 12x = 6(5 + 2x)

So  6 and 5 + 2x  is one possible answer.

3 and 10 + 4x is another.

12 and 2.5 + x is another.

If we multiply these pairs together we see that the result is

30 + 12x in each case.

6 0
3 years ago
The area of a square can be found using the equation A = s², where A is the area and s is the measure of one side of the square.
noname [10]
The correct answer is B. s = √81 in. Hope I helped!
5 0
3 years ago
Read 2 more answers
Other questions:
  • Use tens to solve 13-7
    11·1 answer
  • How many solutions does the following equation have? |3x + 12| = 18
    13·2 answers
  • What is 7*-8? my calculator wont work because I cant do problems with negative # on it.
    12·2 answers
  • Which of the following is the solution set of 18 - 3n + 2 = n + 20 - 4n?
    12·2 answers
  • What is the inverse of the following function?<br><br> y = 1/2x −6
    5·1 answer
  • The equation (x2 + 2x2)(3x2 + 2x + 1) = x (3x2 +2x+1)+2x+ (3x2 +2x+1) is an
    11·2 answers
  • Mr. Heath organizes a six-game tournament where players will
    11·1 answer
  • What is 0.0006009 written in scientific notation
    12·1 answer
  • What is the scale factor?
    6·2 answers
  • Daniela examines the two triangles below and determines Triangle D A C is similar to triangle T R S.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!