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
Bas_tet [7]
3 years ago
7

Solve the following equation. justify each step 0.2x+3.1-2.1x=0.3(x-5)+0.2

Mathematics
1 answer:
Misha Larkins [42]3 years ago
4 0
1.) Distribution 0.3(x-5) = 0.3x-1.5

2.) Combine like terms 0.2x and -2.1x ; -1.5 and 0.2

-1.9x + 3.1 = 0.3x -1.3

3.) Add 1.3 to both sides

-1.9x + 4.4 = 0.3x

4.) Add 1.9x to both sides

4.4 = 2.2x

5.) Divide both sides by 2.2 to isolate the variable.

x=2
You might be interested in
WILL MARK BRAINLIEST <br> What is the value of j?
LenKa [72]
I physically cannot tell you
4 0
2 years ago
Read 2 more answers
Find the discriminant of the equation. x2 + 3x - 4 = 0
ivann1987 [24]

Please use " ^ " to indicate exponentiation: x^2 + 3x - 4 = 0

Here, a = 1, b = 3 and c = -4.

The formula for the discriminant is b^2 - 4(a)(c).

Substituting the given values of a, b and c, we get:

(3)^2 - 4(1)(-4)

Evaluating this, we get 9 + 16 = 25.

The discriminant is 25.

-3 plus or minus √25

Taking this further, x = ------------------------------------

2

-3 plus or minus 5

or: x = -------------------------------- => {-4, 1} (solutions)

2

5 0
3 years ago
Read 2 more answers
What is the volume of a rectangular prism with a length of 7m, a hight of 9m and a width of 11m
vazorg [7]
Hello!

To find the Volume of the Rectangular Prism, you'll need to multiply all of the measurements together. So you'll need to multiply 7, 9, and 11 together.

V=7*9*11

First, you'll need to multiply 7 and 9. Once you've multiplied 9 and 7 together, you should have 63. Now you should multiply 63 and 11 together. Once you've multiplied 63 and 11 together, you should have a Volume of 693

You should have a Volume of 693m³

I hope this helps!
5 0
3 years ago
Is this a function or a non function?​
ElenaW [278]

Answer:

This is a function

Step-by-step explanation:

If you do the Vertical Line Test you can see that the line passes through only one dot at a time. Therefore it is a function. If the line passed through more than one dot at a time then it wouldn't be a function.

4 0
2 years ago
Doug has $12 to spend on popcorn and peanuts. The peanuts are $4 each and popcorn is $2 each Write a linear equation that descri
Fynjy0 [20]
Popcorn=x
peanuts=y
2x+4y=12
4 0
3 years ago
Other questions:
  • I need this answered soon please
    14·1 answer
  • Pls help me on this question:)
    8·1 answer
  • Mikey deposited $782.11 in a savings account that earns 4.3% simple intrest. What is mickeys account balance after 16 years
    10·2 answers
  • Two test preparation companies claim that students are
    7·1 answer
  • What is the factored form of the quadratic equation y=x2+4x-12? <br><br> PLEASE HELP ME!!!
    15·2 answers
  • Solve proporation h/9=2/3
    7·1 answer
  • Tyler needs to get the windows in his new home cleaned. The cleaning company needs to know the total number of window panes befo
    12·2 answers
  • <img src="https://tex.z-dn.net/?f=4x%20-%2010%20%3D2" id="TexFormula1" title="4x - 10 =2" alt="4x - 10 =2" align="absmiddle" cla
    12·2 answers
  • The temperature fell 4 degrees in the last hour. Now it is 21 degrees. Write an equation to find the temperature it was 1 hour a
    12·1 answer
  • PLEASE HELP I HAVE 4 MINUTES TO DO THIS WHATS 6+6​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!