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
krek1111 [17]
3 years ago
7

3 (a - 1) + 31 - 11a = 4 ( 2a + 3)

Mathematics
2 answers:
nikitadnepr [17]3 years ago
8 0

Answer:

-⅖

Step-by-step explanation:

We need to simplify the given equation and find out the value of a , as ,

=> 3(a-1)+31-11a = 4(2a+3)

=> 3a -3+31-11a = 8a + 12

=> -8a -28 = 8a + 12

=> 16a = -28-12

=> 16a = -40

=> a = -2/5

<h3>• Hence the value of a is -⅖ .</h3>
kotegsom [21]3 years ago
4 0
<h2><u>Question :-</u></h2>

3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )

<h3>____________________</h3>

<h2><u>Solution :-</u></h2>

<h3><u>Given Information :-</u></h3>

  • <u>Equation</u> ➢ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )

<h3><u>To Find :-</u></h3>

  • The value of 'a'

<h3><u>Calculation :-</u></h3>

⇒ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )

<em><u>Opening the brackets and multiplying the terms, We get, </u></em>

⇒ 3a - 3 + 31 - 11a = 8a + 12

⇒ -8a + 28 = 8a + 12

⇒ 8a + 8a = - 28 - 12

⇒ 16a = 40

<em><u>Transposing 16 to Right Hand Side, We get,</u></em>

⇒ a = \sf \frac{40}{16}

⇒ a = \sf \frac{-2}{5}

<h3>____________________</h3>

<h2><u>Final Answer :-</u></h2>

  • The value of 'a' is \bf \frac{-2}{5}

<h3>____________________</h3>
You might be interested in
Please simplify each expression for 18, 20, and 21
NeX [460]
The answer to the questions

5 0
3 years ago
Quadratic Equations<br> How do I solve a quadratic equation?
malfutka [58]
There are different ways to solve a quadratic equation, the main ones that i'm thinking about right now are:
1) factor the equation as a product:
 ex:        x^2+ 4x + 3 =0
             (x+3) (x+1) = 0
              x=-3 and x=-1 are the solutions.
To find (x+p) and (x+q) you have to think that (p+q )have to be equal to the number that is multiplied by x, in my example it was 4 (3+1=4), (p times q) have to be equal to the last number of the quadratic equation, the one that is not multiplied by any x, that in my example is 3 (3 x 1= 3)

2) The other way to solve a quadratic function is by using a formula:
    given: ax^2 +bx +c=0
    x= (-b +/- <span>√(b^2 -</span> 4ac)) / 2a
    
 ex: 3x^2 + 4x -2=0
    x= (-4 +/- √16-4(3)(-2)) / 6= (-4 +/- √16+24)/6= (-4 +/- <span>√40) / 6
now there are 2 possibilities: x= (-4+</span><span>√40) /6
                                                        and
                                              x= (-4 - </span><span>√40) / 6
I hope the examples were clear enough also if i did't get very nice numbers. Look closely to the sings + and -, they are very important</span>
5 0
3 years ago
Find any points of discontinuity for the rational function... y=x-3/x^2-3x-10
vlabodo [156]

Answer:

x = -2 or 5

Step-by-step explanation:

y = (x-3)/((x-5)(x+2))

y is undefined when the denominator is zero.

5 0
3 years ago
Siri can run 6 miles in 3/4 of an hour at this rate what is the total number of miles a student can run in one hour
Lesechka [4]

Answer:

4.5 mph

Step-by-step explanation:

6 times 3 is 18.

18 divided by 4 is 4.5

3 0
3 years ago
There are 1000 ml in a liter how many liters are in 500 ml ??
Helen [10]
There are 0.5 liters in 500 ml.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following consists of a single element or type of compound?
    12·2 answers
  • A=1.25,b=1,c=? What’s the missing value
    7·1 answer
  • Find the gcf of <br> 24, 14, 21
    9·2 answers
  • Three times two less than a number is greater than or equal to five times the number. Find all of the numbers that satisfy the g
    9·1 answer
  • The distance AB rounded to the nearest tenth<br> (-2, 1) and (1,-1)
    6·2 answers
  • Silvia has completed 8 math exercises e. This one fourth of the assignment. How many exercises were assigned?
    10·1 answer
  • Explain the steps used to find the solution.
    5·1 answer
  • The ratio of Sam's money to Buffy's is 1.2. If Sam has $3, how much money does Buffy have? Show your work please
    13·1 answer
  • HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
    11·1 answer
  • Round 0.293263 to the ten thousandths place
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!