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
anygoal [31]
4 years ago
5

If 9 were subtracted from three times a number, the result would be the same as if 4 were added to twice the number. what is the

number?
Mathematics
1 answer:
amid [387]4 years ago
4 0
3x-9=2x+4
3x-9+9=2x+4+9
3x=2x+13
3x-2x=2x-2x+13
x=13
Check:
3(13)-9=2(13)+4
39-9=26+4
30=30
You might be interested in
Solve the following system of equations and show all your work y=2x^2 y=3x-1
Ann [662]

Answer:

( 1/2 ; 1/2 ) and ( 1 ; 2 )

Step-by-step explanation:

y = 2x².............1

y = 3x-1............2

2x²=3x-1

2x²-3x+1 = 0

(2x-1)(x-1) = 0

x = 1/2 or x = 1

y = 1/2 or y = 2

4 0
3 years ago
Hello :) <br> Please help me solve this <br><br> Explain answer
Alborosie
I think the answer is c
7 0
3 years ago
Select the correct answer.
viva [34]

Answer:

As the given equation represents a quadratic function.

Thus, y\:=\:x^2-9x represents a function.

As we know that the function is just a relation in which each input has only one output.

Thus, y\:=\:x^2-9x represents a relation and function.

Step-by-step explanation:

Given the equation

y\:=\:x^2-9x

As the given equation represents a quadratic function.

Thus, y\:=\:x^2-9x represents a function.

As we know that the function is just a relation in which each input has only one output.

Thus, y\:=\:x^2-9x represents a relation and function.

We know that the domain of a function is the set of input or argument values for which the function is real and defined.

\mathrm{Domain\:of\:}\:x^2-9x\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:

We also know that the range of a function is the set of values of the dependent variable for which a function is defined.

\mathrm{Range\:of\:}x^2-9x:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)\ge \:-\frac{81}{4}\:\\ \:\mathrm{Interval\:Notation:}&\:[-\frac{81}{4},\:\infty \:)\end{bmatrix}

The graph is also attached below. From the graph, it is clear that it represents a Parabola.

6 0
3 years ago
Y = 5x + 2
fgiga [73]
<h3>Answer: The solution of the system of equations is (1,7).</h3>

Step-by-step explanation: Given system of equations

y = 5x + 2 and

3x = –y + 10.

Substituting y= 5x+2 in second equation, we get

3x = -(5x+2) +10.

Distributing minus sign in (5x+2), we get

3x= -5x-2+10.

3x = -5x + 8.

Adding 5x on both sides, we get

3x+5x = -5x+5x +8

8x = 8.

Dividing both sides by 8, we get

8x/8 = 8/8

x = 1.

Plugging x=1 in first equation, we get

y = 5(1) +2

y = 5+2=7.

<h3>Therefore, the solution of the system of equations is (1,7).</h3>

7 0
3 years ago
Read 2 more answers
Please HELP! ):
Sholpan [36]
A polygon has 18 sides :)
4 0
3 years ago
Other questions:
  • Solve for b.<br><br> −13b=9 plees help
    12·2 answers
  • Darcy uses place-value blocks to show a number. She use 4 thousand blocks and 5 hundred blocks .whats is the number? How can she
    15·1 answer
  • Please help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
    11·1 answer
  • Change x^2-8x+6 into its factored form
    5·1 answer
  • The graph of the reciprocal parent function f(x)=1/x, is shifted 6 units down and 1 unit to the right to create the graph of g(x
    8·1 answer
  • Match the two numbers with their least common multiple (LCM).8 and 4 8 and 6 8 and 10
    14·1 answer
  • Find the solution to G/11 = 5.<br><br> g =
    8·2 answers
  • Which is the closest synonym for the word productive?
    10·1 answer
  • The price of Stock A at 9 A.M. was ​$12.21. Since​ then, the price has been increasing at the rate of ​$0.11 each hour. At noon
    10·1 answer
  • ANYBODY WANNA DATE? KINDA LONELY​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!