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
Sphinxa [80]
3 years ago
13

2/7x+1/2x=−40/7−1/6x please explain step by step

Mathematics
2 answers:
Lostsunrise [7]3 years ago
7 0
2/7x + 12/x = -40/7 - 1/6x
2/7x + 12/x + 1/6x = -40/7
(12 + 504 + 7)/42x = -40/7
523/42x = -40/7
(42x * -40) = (523 * 7)
-1680x = 3361
x = 3361/-1680 = -2.18

hope this helps
Misha Larkins [42]3 years ago
5 0
Your answer is x= -6 you may review the image I've attached to see how i got my answer.

You might be interested in
jamil buys 4 books and some pens each book costs £5.95 each pen costs £2.35 the toal costs of the books and the pendulum is £37.
Anika [276]

Answer:

9.68

Step-by-step explanation:

it makes sense when u tink about ot

8 0
3 years ago
A bag contains 1 purple beads and 3 green beads. A bead is drawn and then replaced before drawing the second bead. Find the prob
disa [49]

ggg

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
What is the range of the function f(x) = 3x2 + 6x - 8?
V125BC [204]

Answer:

  {y | y ≥ -11 }

Step-by-step explanation:

To answer a question like this, it is often helpful to graph the function or to rewrite it to vertex form.

  f(x) = 3x^2 +6x -8

  f(x) = 3(x^2 +2x) -8 . . . . factor the leading coefficient from x terms

  f(x) = 3(x^2 +2x +1) -8 -3(1) . . . . complete the square*

  f(x) = 3(x +1)^2 -11

The form of this equation tells you that the graph is a parabola that opens upward. Its vertex is (-1, -11), so the minimum value is -11. The range is the vertical extent of the function values, so goes upward from -11:

  y ≥ -11

_____

* Vertex form is ...

  f(x) = a(x -h)^2 +k

where "a" is the vertical scale factor and (h, k) is the vertex. When "a" is positive, the parabola opens upward; when it is negative, the parabola opens downward.

The square is completed by adding the square of half the x-coefficient inside parentheses, and subtracting the equivalent amount outside parentheses. Here, we had 2x inside parentheses, so we added (2/2)^2 = 1 inside and -3(1) outside, because "a" was 3.

_____

Brainly provides tools for properly rendering math symbols. 2-11 is not the same as ≥-11.

7 0
3 years ago
PLS HELP!!!<br> simplify 3^2 x 3^4 x 3^6= <br> 3^10<br> 3^12<br> 3^0<br> 3^40
EastWind [94]

Answer:

3¹² is answer

Step-by-step explanation:

3^(2+4+6)

3^12

4 0
2 years ago
Solve for x.3(3x - 1) + 2(3 - x) = 0
mote1985 [20]
9x-3+6-2x=0
7x+3=0
X=-3/7
5 0
3 years ago
Read 2 more answers
Other questions:
  • Name three real life situations in which you would use a positive number
    5·1 answer
  • Cell Phone Company A charges $20 each month plus $0.03 per text. Cell Phone Company B charges $5 each month plus $0.07 per text.
    8·2 answers
  • The radius of each wheel of a car is... Please answer quickly
    12·2 answers
  • I will mark as brainliest
    5·2 answers
  • Which of the following series are convergent?
    10·1 answer
  • Me need help its hard
    7·2 answers
  • Sally bought 4 boxes of pens for $6 each and 7 packages for $7 each. Find the amount sally spent on pens and paper.
    8·1 answer
  • Y, if m=3, x=6, and b=7
    15·2 answers
  • Ella earned a 16/20 on her quiz. What percent is this​
    6·1 answer
  • Katy buys 4 DVDs every 2 weeks. How many DVDs will she buy in 14 weeks?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!