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
Solnce55 [7]
3 years ago
13

Solve 1.2(5-x) = 2(1.4x+3)

Mathematics
1 answer:
Arturiano [62]3 years ago
4 0

Answer:

x = 0

Step-by-step explanation:

Solve for x:

1.2 (5 - x) = 2 (1.4 x + 3)

Expand out terms of the left hand side:

6 - 1.2 x = 2 (1.4 x + 3)

Expand out terms of the right hand side:

6 - 1.2 x = 2.8 x + 6

Subtract 2.8 x from both sides:

6 + (-1.2 x - 2.8 x) = (2.8 x - 2.8 x) + 6

-1.2 x - 2.8 x = -4 x:

-4 x + 6 = (2.8 x - 2.8 x) + 6

2.8 x - 2.8 x = 0:

6 - 4 x = 6

Subtract 6 from both sides:

(6 - 6) - 4 x = 6 - 6

6 - 6 = 0:

-4 x = 6 - 6

6 - 6 = 0:

-4 x = 0

Divide both sides of -4 x = 0 by -4:

(-4 x)/(-4) = 0/(-4)

(-4)/(-4) = 1:

x = 0/(-4)

0/(-4) = 0:

Answer:  x = 0

You might be interested in
A climatologist wants to determine the thickness of a glacier with a surface area of about 2 km². He selected 10 locations at ra
atroni [7]

Answer:

i want to help but ant

Step-by-step explanation:

I want to hep but i think i got the wrong answer

8 0
2 years ago
Do 33 and 34 for brainiest in 60 seconds
Archy [21]

Answer:

ooooooooooooooooooooooooooooooooo

6 0
3 years ago
Help, Help, Please
Lesechka [4]

Answer:

θ = \frac{\pi }{3} (60° )

Step-by-step explanation:

Using the identity

sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x

Given

cos²θ - sin²θ = 2 - 5cosθ

cos²θ - (1 - cos²θ) = 2 - 5cosθ

cos²θ - 1 + cos²θ = 2 - 5cosθ

2cos²θ - 1 = 2 - 5cosθ ( subtract 2 - 5cosθ from both sides )

2cos²θ + 5cosθ - 3 = 0 ← in standard form

(cosθ + 3)(2cosθ - 1) = 0 ← in factored form

Equate each factor to zero and solve for θ

cosθ + 3 = 0

cosθ = - 3 ← not possible as - 1 ≤ cosθ  ≤ 1

2cosθ - 1 = 0

cosθ = \frac{1}{2} , so

θ = cos^{-1} (\frac{1}{2} ) = \frac{\pi }{3} ( or 60° )

8 0
2 years ago
Read 2 more answers
(X-8)(x+1) what’s the answer
slega [8]
X^2-7x-8
steps:
x*x
x*1
-8*x
-8*1
3 0
3 years ago
There are 6 equally sized slices in a pizza. If Ken eats 5 of the slices,
Ludmilka [50]

Answer:

Step-by-step explanation:

5 / 6 = 0.83333333...

0.833333...•100 = 83.333333...

83.3%

3 0
2 years ago
Read 2 more answers
Other questions:
  • Diane's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Diane
    5·1 answer
  • Three ways to write the number 64 using three different bases besides 64
    12·1 answer
  • Help please?? If you deposit $750 in an account that pays 8% annual interest compounded continuously, what will the balance be a
    7·1 answer
  • Can someone please help me, I’ll give you Brainliest
    13·1 answer
  • 3) If it takes 3/29 of the coal for the train to go 1 mile, how much of the coal would it take to go 6.3 miles?
    5·1 answer
  • 0.2cubed + (1/5 * 3/4) - 1/12
    15·1 answer
  • Help what is the value of X
    11·1 answer
  • Carrie sewed a square blanket with an area of 225 in^2
    10·2 answers
  • Find a​ point-slope form for the line with slope 1/5 and passing through the point ​(-7​,-6​).
    6·1 answer
  • 4/7 + 2/7 = ? can yall plzz help me simplify the awnser
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!