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
Seraphina says that angle KLM is a right triangle. Is she correct? Explain.​
katovenus [111]

Answer:

Incorrect

Step-by-step explanation:

The angle is acute,which means under right triangle's usual size.

You need at least 90 cm to have a right triangle so no she is incorrect

4 0
3 years ago
Read 2 more answers
A drilling machine can drill 12 holes in 6 minutes.If the machine drill holes at a constant speed, it can drill holes in 25 minu
Zielflug [23.3K]

Answer:

Did you mean to ask how many holes can the drill drill in 25 minutes, then the answer is 50

7 0
3 years ago
Toby goes on holiday to Geneva, Switzerland. In Geneva, Toby sees a watch costing 193.75 CHF (swiss france). In Manchester, an i
evablogger [386]

Answer:

Part a) In Geneva the watch is cheaper

Part b) The watch in Geneva is \£20 cheaper than the same watch in Manchester

Step-by-step explanation:

<u><em>The question is</em></u>

a) In which city is the watch cheaper?

b) By how much is it cheaper (in £)?

Part a)

Transform CHF\ to\ \£ in order to work with the same currency and make the comparison

If \£1=1.55CHF

193.75\ CHF=193.75(\frac{1}{1.55})=\£125

Now we can make the comparisons:

In Geneva the watch costs

\£125

and

in Manchester it costs

\£145

\£125 < \£145

therefore

In Geneva the watch is cheaper

Part b)

If we want to know by how much is cheaper, subtract from the expensive price the value of the cheaper price

\£145-\£125=\£20

Therefore

The watch in Geneva is \£20 cheaper than the same watch in Manchester

3 0
3 years ago
What’s the slope of x-5y=15
Anika [276]

Answer:

X/-5

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Help me pleasse it’s really late
IceJOKER [234]

Answer:

120 yards

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Gregory’s taxable income last year was $65,750. According to the tax table below, how much tax does he have to pay if he files w
    8·2 answers
  • Solve -2= -(x-8), justifying each step with an algebraic property PLZ HELP
    8·1 answer
  • If x+1/x=5 then find the value of (x^2+1/x^2) is?
    5·1 answer
  • Does anyone know how to convert meters per second into miles per hour? if possible, plz post the exact equation
    13·1 answer
  • Please Help Fast!!!Need help!!
    5·1 answer
  • Xavier fills a rectangular prism with 12-centimeter cubes. The base of the prism measures 5 centimeters by 3 centimeters, and th
    5·2 answers
  • How do you find the horizontal asymptote of a rational function?"
    7·2 answers
  • Can someone help me with Question 1 Please? I forgot how to do it- Also, No links please!​
    8·2 answers
  • Theresa uses a unique box in the shape of a trapezoidal prism for her specialty candles. The area of the base of the box for the
    11·1 answer
  • Given F(x) = x2 + 4x − 9, evaluate. F(−4)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!