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
julia-pushkina [17]
3 years ago
5

Given: -7(x+2)+4x=6(2x-4); Prove x=2/3

Mathematics
1 answer:
Klio2033 [76]3 years ago
7 0

Answer:

see below

Step-by-step explanation:

-7(x+2)+4x=6(2x-4)

Distribute

-7x -14 +4x = 12x -24

Combine like terms

-3x-14 = 12x-24

Add 3x to each side

-3x-14+3x = 12x-24+3x

-14 = 15x-24

Add 24 to each side

-14+24 = 15x -24+24

10 = 15x

Divide each side by 15

10/15 =15x/15

2/3 =x

You might be interested in
Solve the equation by factoring. 3z^2+3z-6=0
Morgarella [4.7K]

Answer:

z = 1 or z = –2

Hope this helps !

6 0
3 years ago
Read 2 more answers
A plant manufactures part whose lengths are normally distributed with a mean of 16.3 centimeters and a standard deviation of 2.5
EastWind [94]

The probability that the plant manufactures a part between 10.8 and 12.8 centimeters 13%

<h3>How to find the probability that the part is between 10.8 and 12.8 centimeters</h3>

The probability is solved z scores, this measures the amount of standard deviation sample X is from mean. the formula is below

z = (X - μ) / σ

<u>Definition of variables</u>

mean, μ = 16.3 centimeters

standard deviation, σ = 2.5 centimeters

X = 10.8 and 12.8 centimeters

z score, z

substituting into the formula

for X = 12.8 centimeters

=  (X - μ) / σ

= (12.8 - 16.3) / 2.5

= -1.4

the p value for z of -1.4 = 0.161513

for X = 10.8 centimeters

=  (X - μ) / σ

= (10.8 - 16.3) / 2.5

= -2.2

the p value for z of -2.2 = 0.027807

the probability is calculated as below

0.161513 - 0.027807= 0.133706

= 0.13

=13%

Learn more about standard deviation at:

brainly.com/question/28948351

#SPJ1

8 0
1 year ago
Whats 2.13×0.197 as a decimal
Tcecarenko [31]

Answer:

It's 0.41961.

8 0
3 years ago
Read 2 more answers
How do you simplify fractoins
VARVARA [1.3K]
Find the GCF of both numerator and denominator and then divide both the denominator and numerator by that and you will get the simplified fraction.
6 0
3 years ago
Read 2 more answers
Evaluate this expression for x =4<br><br> 4*(x-2)^2-9
TiliK225 [7]

Answer:

ok so the answer is 1/32 or 0.03125

Step-by-step explanation:

Hope this helped!!

8 0
3 years ago
Other questions:
  • I have 10 apples, I give away 2, how many apples do I have left
    5·2 answers
  • A:1 hour 37 minutes <br> B:2 hours 37 minutes <br> C:2 hours 23 minutes <br> D:1 hour 23 minutes
    13·1 answer
  • 5. A cyclist and bike have a total mass of 102 kg and a speed of 17 m/s.calculate the kinetic energy?
    13·1 answer
  • Is this problem correct????????????????/
    10·1 answer
  • .<br>The area of a square feild is 100 find the perimeter.<br>د<br><br>​
    6·2 answers
  • What is statement #4???<br> I’ll give best answer brainliest!!
    9·1 answer
  • Somebody pls help me!!!
    5·2 answers
  • PLEASE HELP IM BEING TIMED I WILL MARK BRAINLY
    11·1 answer
  • If there are 52 cards in a standard deck, what is the fractional probability of randomly pulling the Queen of diamonds from the
    6·2 answers
  • Can you help me with this question Plsss?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!