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
dusya [7]
3 years ago
10

3/(x+3)=4/9 solve for x☺️

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0
3*9=4x+12
27=4x+12
4x=27-12
4x=15
x=3.75
You might be interested in
What is the final amount if 1010 is decreased by 6% followed by a further 9% decrease?
maw [93]

Answer:

863.95

Step-by-step explanation:

1010×0.94=949.4

949.4×0.91=863.954

863.95

3 0
4 years ago
Need help on these math questions. please and thank u
Svetach [21]

9514 1404 393

Answer:

  a) x = -3

  b) y = (28/27)x -27

Step-by-step explanation:

a) College street has a slope of 0, so is a horizontal line. 2nd Ave is perpendicular, so is a vertical line, described by an equation of the form ...

  x = constant

For 2nd Ave to intersect the point (-3, 1), the constant must match that x-coordinate. The equation is ...

  x = -3

__

b) Since Ace Rd is perpendicular to Davidson St, its slope will be the opposite reciprocal of the slope of Davidson St. The slope of Ace Rd is ...

  m = -1/(-27/28) = 28/27

Using the point-slope equation for a line, we can model Ace Rd as ...

  y -y1 = m(x -x1)

  y -1 = (28/27)(x -27)

  y = (28/27)x -27

4 0
3 years ago
Over which interval is the graph of f(x) = one-halfx2 + 5x + 6 increasing?
kaheart [24]

Answer:

\large\boxed{x\in[-5,\ \infty)}

Step-by-step explanation:

f(x)=\dfrac{1}{2}x^2+5x+6\\\\\text{The coeficient of}\ x^2\ \text{is the positive number. Therefore the parabola is op}\text{en up}.\\\\\text{If a parabola op}\text{en up, then the graph increasing in interval}\ (h,\ \infty),\\\text{and decreasing in interval}\ (-\infty,\ h).\ \text{Where}\ h\ \text{is a first coordinate of a vertex.}\\\\\text{For}\ y=ax^2+bx+c,\ h=\dfrac{-b}{2a}.\\\\\text{We have}\ a=\dfrac{1}{2}\ \text{and}\ b=5.\ \text{Substitute:}\\\\h=\dfrac{-5}{2\left(\frac{1}{2}\right)}=-\cdot\dfrac{5}{1}=-5.

8 0
4 years ago
Read 2 more answers
Give a correct interpretation of a 99% confidence level of 0.328 < μ < 0.486.
stepladder [879]

Answer:

D

Step-by-step explanation:

Lower bound of the population mean is 0.328

Upper bound of the population mean is 0.486

Confidence level is 99%

Therefore, the correct interpolation of the confidence interval is that we are 99% confident that the true value of the population mean is between 0.328 and 0.486

5 0
4 years ago
The ratio of coloured papers to wight papers is 3:8.If there are 48 wight papers, how many coloured papers are there?
mestny [16]

Answer:  The total number of colored papers is 18.

Step-by-step explanation:

Given: The ratio of coloured papers to wight papers is 3:8.

Let total number of colored papers = 3x

and total number of wight papers = 8x

Since, there are 48 wight papers , then

8x=48

\Rightarrow\ x=6

Now , number of colored papers = 3(6)=18

Hence, the total number of colored papers is 18.

4 0
3 years ago
Other questions:
  • What is 0.185 reapeated to a fraction?
    11·2 answers
  • How do I complete this problem?​
    8·1 answer
  • The values of x and y vary directly and one pair of values are given. Write an equation that relates x and y. x=-4,y=6
    11·1 answer
  • a sequence is defined by the explicit formula an = 3^n + 4. which recursive formula represents the same sequence of numbers?
    7·1 answer
  • Naomi is 16 and she would like to open a savings account. What should she do?
    15·2 answers
  • Sandra says that 90 divided by -9 equal 10. Is she correct ? Explain.
    10·2 answers
  • Given: m = 1/2 and b = 4
    6·1 answer
  • Divide 315ml in the ratio 2:7
    15·1 answer
  • 8x+9y=60 2x-9y=-30 elimation method
    8·1 answer
  • On a number line, which fraction is between 1/4 and 1/5?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!