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
labwork [276]
3 years ago
14

Solve for x. 1.1x + 1.2x - 5.4 = -10

Mathematics
1 answer:
Andru [333]3 years ago
4 0

Answer:

x ≈  - 1.83

Step-by-step explanation:

to solve for x in the question 1.1x + 1.2x - 5.4 = -10

we have

2.3x - 5.4 = -10

collect the like terms

2.3x = -10 + 5.4

2.3x = -4.2

divide both sides by the coefficient of x

2.3x/2.3 = -4.2/2.3

x = -1.826

x ≈  - 1.83

You might be interested in
(X-3) (2x-3)= (x-3) (x+1) solve for x
yanalaym [24]

(x  - 3)(2x - 3) = (x - 3)(x + 1)

Do the multiplication both sides,

2 {x}^{2}  - 9x + 9 =  {x}^{2}  - 2x - 3

Arrange the terms to LHS according to their variables,

2 {x}^{2}  -  {x}^{2}  - 9x  +  2x + 9 - 3 = 0 \\  {x}^{2}  - 7x  + 6 = 0


Factorise this polynomial

{x}^{2}  - 6x - 6x + 6 = 0 \\ x(x - 6) - (x - 6) = 0 \\ (x - 1)(x - 6) = 0


So what we notice here is when you're multiplying two numbers you're getting 0 as answer.

So one of them must be 0.

If (x-1) is 0
then x = 1

similarly,

x-6=0

then, x= 6.


So the possible values of x are 1 and 6.
7 0
3 years ago
Read 2 more answers
Solve for y.<br><br> 2y - x = <br> 3<br> 4<br> (-y + 1)
Mars2501 [29]

2y-x=3/4(-y+1)first distribute

2y-x=-3/4y+3/4 get the y on one side

2y-x+3/4y=3/4 add 3/4y to both sides

2y+3/4y=3/4+x add x to both sides

11/4y=3/4+x now divide by 11/4 (both sides)

y=3/11+4/11x

y=3+4x/11

choice c is the answer

6 0
3 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp
love history [14]

Answer:

<u>36 in²</u>

Step-by-step explanation:

<u>Area of the figure</u>

  • Area (small rectangle) left + Area (big rectangle) right
  • 3 x (6 - 4) + 5 x 6
  • 3 x 2 + 30
  • 6 + 30
  • <u>36 in²</u>

3 0
3 years ago
Read 2 more answers
A cutting tool fails due to flank wear while machining. It is observed that the tool life at a cutting speed of 160 m/min is 5 m
Ahat [919]

Answer:

The answer is:

30 minutes.

Step-by-step explanation:

We are given the following information:

at 160 m/min, tool life = 5 min.

at 120 m/min, tool life = 17 min.

This means that as the speed reduced from 160 m/min to 120 m/min, the tool life increased from 5 min. to 17 min, hence the difference between the changes are:

speed = 160 - 120 = 40 m/min

tool life = 17 - 5 = 12 min.

Therefore, it can be concluded that a change of speed of 40 m/min, increases the tool life by 12 min.

40 m/min = 12 min

∴ 1 m/min = 12/40 min.

∴ 100 m/min = 12/40 × 100 = 0.3 × 100 =30 min.

8 0
3 years ago
Expression <br> (27)x/3 equivalent
Ludmilka [50]

Answer:9x hope it helps

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Express in logarithmic form for the base.. . 4^2=16
    10·2 answers
  • Add 1 1/3+(−5/6) <br><br> brainliest given to the right answer
    10·2 answers
  • ∠BEC is formed inside a circle by two intersecting chords. If minor arc BD = 94 and minor arc CA = 166, what is the measure of
    10·1 answer
  • 20<br> y<br> -12<br> 14<br> -2 21<br> 8<br> 28<br> What is the y-intercept of the line?
    13·2 answers
  • Solve these systems of equations.
    14·1 answer
  • Explain how you can write an equation for a line with slope 1/2 that crosses the y-axis at the point (0,-1).
    14·1 answer
  • The graph shows f(x) = |x – h| + k. What is the value of h?
    13·1 answer
  • There are 400 people in a talent show in middle school in February 62% of students performed in the band concert how many studen
    6·1 answer
  • Hi Help me with question 6b) pls
    8·1 answer
  • Can anyone find the area to this?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!