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
BartSMP [9]
4 years ago
5

How do you solve -8k=-5k+9

Mathematics
2 answers:
pogonyaev4 years ago
7 0
You add +5k to both sides to eliminate-5k, leaving you with -3k=9 { since you added 5k to both sides } . then you divide both -3k on both sides { to isolate k }, leaving you with k = -3 as your answer.
Zolol [24]4 years ago
5 0

Answer:

k = -3

Step-by-step explanation:

This one is quite easy once you know how to achive this:

What you want to to is first add 5k to both sides

-8k + 5k = -5k + 5k + 9

This eliminates the 5k leaving

-3k = 9

And since you can't have a negative exponent, times both sides by -1

-3k x -1 = 9 x -1

3k = -9

Now divide both sides by 3 to get the answer

3k/3 = -9/3

k = -3

and thats the answer.

Hope this helps and have a great day!

You might be interested in
Find the equation of the tangent line. y=(x^2+x-2)^2 at (-1,4)​
Keith_Richards [23]

Compute the derivative of <em>y</em> = (<em>x</em>² + <em>x</em> - 2)² using the chain rule:

d<em>y</em>/d<em>x</em> = 2 (<em>x</em>² + <em>x</em> - 2) d/d<em>x</em> [<em>x</em>² + <em>x</em> - 2]

d<em>y</em>/d<em>x</em> = 2 (<em>x</em>² + <em>x</em> - 2) (2<em>x</em> + 1)

Evaluate the derivative at <em>x</em> = -1 :

d<em>y</em>/d<em>x</em> (-1) = 2 ((-1)² + (-1) - 2) (2 (-1) + 1) = 4

This is the slope of the tangent line to the function at (-1, 4).

Use the point-slope formula to get the equation for the tangent line:

<em>y</em> - 4 = 4 (<em>x</em> - (-1))   →   <em>y</em> = 4<em>x</em> + 8

6 0
3 years ago
4. The students in Mr. Michael’s art class are decorating a booth for Harvest Day. They have blue cloth that is 60 inches long,
MrRissso [65]

Length of blue cloth is 60 inches , length of gold cloth is 48 inches and length of white cloth is 72 inches.

<u>a.</u>  

As, the length of all pieces are equal, so for getting the greatest possible length of the pieces, we need to find <u>GCF(greatest common factor) of 60, 48 and 72. </u>

First we will factor out all three numbers completely......

60=2*2*3*5\\ \\ 48=2*2*2*2*3\\ \\ 72=2*2*2*3*3

The common factors are: 2, 2 and 3

Thus the GCF = 2*2*3=12

So, the greatest possible length of the pieces without having any cloth left over will be 12 inches.

<u>b. </u>  

For finding the number of pieces for each color cloth, we will just <u>divide the length of each cloth by 12</u>. So...

Number of pieces for blue cloth =\frac{60}{12}=5

Number of pieces for gold cloth =\frac{48}{12}=4 and

Number of pieces for white cloth =\frac{72}{12}=6

4 0
3 years ago
Explain how to find which value is greater (5/6)*81 or (9/10)*81 without multiplying?
8_murik_8 [283]

The value (9/10)*81 is greater than (5/6)*81

<h3>How to determine the greater value?</h3>

The values are given as:

(5/6)*81 and (9/10)*81

Remove the common factor in both values

So, we have:

5/6 and 9/10

Convert to decimals

0.83 and 0.9

0.9 is greater than 0.83

Hence, (9/10)*81 is greater than (5/6)*81

Read more about expressions at:

brainly.com/question/723406

#SPJ1

8 0
2 years ago
Rewrite as a simplified fraction 1.6 &lt;-- repeating=?
Norma-Jean [14]
1.6666...=1.\overline{6}=1.(6)\\\\x=1.6666...\ \ \ |multiply\ both\ sides\ by\ 10\\10x=16.6666...\\\\10x-x=16.6666...-1.6666...\\9x=15\ \ \ \ |divide\ both\ sides\ by\ 9\\\\x=\frac{15}{9}\\\\\boxed{x=1\frac{6}{9}}\\\\simplify\\\\x=1\frac{6:3}{9:3}=\boxed{1\frac{2}{3}}
6 0
3 years ago
I have 7 hundreds blocks, 5 tens block's, and 8 one's blocks. I use my blocks to model two 3-digit numbers. What could my two nu
Margaret [11]
758, 758.0
I think....................
3 0
4 years ago
Other questions:
  • 3x–8=0.5(8x+4)<br> Solve for X
    15·2 answers
  • What’s the value of x? <br> y= 5x + 9<br> y= -x + 3
    7·2 answers
  • Simplify the expression: <br> 10x–8xy–3xy<br><br> 2ab–7ab+7a2<br><br> –a^4+2a^3–4a^4+2a^2–3a^2
    5·1 answer
  • Find the range of the function y=7x-1 when the domain is {-1, 0, 1}
    12·1 answer
  • As a fundraiser, the Music Boosters wrapped gifts at the mall one weekend. Out of the 100 gifts they wrapped, 3/10 were for wedd
    5·1 answer
  • Pls help I’ll brainlest ASAP I’m failing
    11·1 answer
  • Please help thanks.<br><br><br><br><br><br><br><br>.___________.​
    15·2 answers
  • Notes i
    8·1 answer
  • Help...............!
    14·1 answer
  • Consider trapezoid LMNO.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!