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
yarga [219]
3 years ago
7

3a-4b+5c;4a +11b+2cplease solve extra points​

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
8 0

Answer: a =3c-15b

              b = c/5-a/15

Step-by-step explanation:

You might be interested in
Estimate. then find the sum. 1.20 plus 0.34
Trava [24]
1.20 + 0.34 = 1.54
That is the answer.
5 0
3 years ago
Read 2 more answers
Write a number sentence to show the sum of fourteen and eight is twenty two
Kipish [7]
14 + 8 = 22

Hope this helps!
3 0
3 years ago
A) Write the sequence of natural numbers which are multiplied by 3 ?
Volgvan

Answer:

a) 3, 6, 9, 12, 15,...,3\cdot n, b) 4, 7, 10, 13, 16,...,3\cdot n +1, c) Both sequences are arithmetic.

Step-by-step explanation:

a) The sequence of natural numbers which are multiplied by 3 are represented by the function f(n) = 3\cdot n, n\in \mathbb{N}. Let see the first five elements of the sequence: 3, 6, 9, 12, 15,...

b) The sequence of natural numbers which are multiplied by 3 and added to 1 is represented by the function f(n) = 3\cdot n + 1, n\in \mathbb{N}. Let see the first five elements of the sequence: 4, 7, 10, 13, 16,...

c) Both sequences since differences between consecutive elements is constant. Let prove this statement:

(i) f(n) = 3\cdot n

\Delta f = f(n+1) -f(n)

\Delta f = 3\cdot (n+1) -3\cdot n

\Delta f = 3

(ii) f(n) = 3\cdot n +1

\Delta f = f(n+1)-f(n)

\Delta f = [3\cdot (n+1)+1]-(3\cdot n+1)

\Delta f = 3

Both sequences are arithmetic.

8 0
3 years ago
Which statement best completes the diagram Immigration from Europe increases A. Farmers refuse to move to new territories B. Eur
AveGali [126]

Answer:

A). Farmers refused to move to new territories

Step-by-step explanation:

hope this helps :) :)

6 0
3 years ago
Read 2 more answers
The two triangles are similar, What is the length of DE?
horsena [70]
<h2>Answer:</h2>

This is easy. All you need to do is set up a <u><em>proportional relationship</em></u>.

A proportional relationship uses variables to show similarities, in this case, in triangles.

\frac{2}{3} = \frac{x}{6.3}\\\\3x = 12.6\\\\x = 4.2

<u><em>x</em></u> represents the missing side.

7 0
3 years ago
Other questions:
  • a blue scarf is 1.7 yards long. A green scarf is 1 whole ad 4/5 yards long. Which scarf is longer ? How much longer ?
    12·1 answer
  • A regulation baseball field measures 90 feet between each base.What is the distance around the bases in meters?
    9·1 answer
  • Compared to the graph of f(x)=x^2, the graph of g(x)=2x^2-5 is _____?
    11·1 answer
  • Estimate 8/9 + 4/7<br> Sum or difference
    6·1 answer
  • Solve the following system of equations via elimination.<br> 12x – 9y = 30<br> 6x+15y=54
    15·1 answer
  • Convert the following statement using an "if-then" structure.
    10·1 answer
  • Distribute - 10 (1 + 3x).
    6·2 answers
  • Will anyone please answer my questions? qwq they're kind of important since they're for an assignment that's due today...
    7·1 answer
  •  Which table below matches the scatter plot?
    10·1 answer
  • Faith wants to add a 20% tip to a $56 restaurant bill. How much will Faith pay including the tip?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!