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
aliina [53]
3 years ago
8

Pls solve last question pls pls

Mathematics
2 answers:
Alex777 [14]3 years ago
5 0

Answer:

i don't know how to work this

gavmur [86]3 years ago
5 0

Answer:

x = \frac{3}{4} , x = 20

Step-by-step explanation:

2(\frac{3x-5}{x+2} ) - 5 (\frac{x+2}{3x-5} ) = 3

Multiply through by (x + 2)(3x - 5) to eliminate the fractions

2(3x - 5)² - 5(x + 2)² = 3(x + 2)(3x - 5) ← expand factors on both sides

2(9x² - 30x + 25) - 5(x² + 4x + 4) = 3(3x² + x - 10) ← distribute parenthesis

18x² - 60x + 50 - 5x² - 20x - 20 = 9x² + 3x - 30 ← simplify left side

13x² - 80x + 30  = 9x² + 3x - 30 ( subtract 9x² + 3x - 30 from both sides )

4x² - 83x + 60 = 0 factor by splitting the x- term

4x² - 80x - 3x + 60 = 0

4x(x - 20) - 3(x - 20) = 0

(4x - 3)(x - 20) = 0

Equate each factor to zero and solve for x

4x - 3 = 0 ⇒ 4x = 3 ⇒ x = \frac{3}{4}

x - 20 = 0 ⇒ x = 20

You might be interested in
Yuri surveyed a random sample of 75 students in his school about their favorite color. Of the students surveyed, 49 chose lavend
Svetllana [295]

Answer:

A 600.

Step-by-step explanation:

(49/75) * 900

=  588.

8 0
3 years ago
Read 2 more answers
What is the growth factor for y=4^x
tester [92]
Since 4>1, this represents exponential growth.
5 0
3 years ago
What is 15/4 as a mixed number?
max2010maxim [7]
It would be: 15/4 = 3 3/4

In short, Your Answer would be 3 3/4

Hope this helps!
8 0
3 years ago
While researching Facts on the planet earth Kate learned that a true earth day is about 23.93 hours long how many hours are in 2
HACTEHA [7]

Answer:

335.02

Step-by-step explanation:

Just multiply 23.93 by 14 which is 2 weeks

4 0
3 years ago
Can someone help me please
denis23 [38]

Answer:


Step-by-step explanation:

5.70 divided by 3

witch would be $1.90

3 0
3 years ago
Read 2 more answers
Other questions:
  • 6/12+6/12 and simplify it
    11·2 answers
  • You use 4 gallons of water on 30 plants in your garden. At that rate, how much water will it take to water 45 plants? Math item
    11·1 answer
  • State if each triangle is acute, right or obtuse
    15·1 answer
  • What is the slope of y= -3x -2
    7·1 answer
  • Consider a triangle formed by connecting the three points: (0 0 0), (1 0 0), (1 1 1). a. Find the vector which is perpendicular
    6·1 answer
  • Please help my math question
    5·1 answer
  • Jimmy has 3 yellow pencils, 4 red pencils, 2 green pencils, and 3 blue pencils i his packback. what is the probability thst Jimm
    14·1 answer
  • 10) Planteen la operación y resuelvan: El producto entre el cuadrado de -7 y la raíz cubica de 1728, todo eso sumado 14.
    15·1 answer
  • What is the value of the expression below?<br> 2 [3 (4² + 1) ] - 2³
    9·2 answers
  • What is greater than in mathematice
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!