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
lara [203]
3 years ago
6

What is the x-value of the solution of the system of

Mathematics
1 answer:
Nady [450]3 years ago
8 0

Answer:

x = -1, y = -4

Step-by-step explanation:

Let's solve our system of equations by substitution.

y = 5x + 9y = −x + 3

Step: Solve = 5x + 9 for y:

y = 5x + 9

Step: Substitute 5x + 9 for y in y = −x + 3:

y = −x + 3

5x + 9 = −x + 3

5x + 9 + x = −x + 3 + x (Add x to both sides)

6x + 9 = 3

6x + 9 + −9 = 3 + −9 (Add -9 to both sides)

6x = −6

6x/ 6 = −6/6(Divide both sides by 6)

x = −1

Step: Substitute −1 for x in y = 5x + 9:

y = 5x + 9

y = (5)(−1) + 9

y = 4(Simplify both sides of the equation)

So our answers are y = -4 and x = -1.

You might be interested in
The expression sin 57° is equal to
ValentinkaMS [17]

Answer:

cos(33^{\circ})

Step-by-step explanation:

Given

sin(57^{\circ})

Required

Determine an equivalent expression

In trigonometry:

sin(\theta)= cos(90^{\circ} - \theta)

In sin(57^{\circ})

\theta=57^{\circ}

Substitute 57^{\circ} for \theta

in sin(\theta)= cos(90^{\circ} - \theta)

sin(57^{\circ})= cos(90^{\circ} - 57^{\circ})

sin(57^{\circ})= cos(33^{\circ})

Hence, the equivalent expression is: cos(33^{\circ})

5 0
3 years ago
When the factor of a trinomial are (X+P) and (x+q) then coefficient of the x-term in the trinomial is A The sum of p and q B the
Marianna [84]
The answer should be A, the sum of p and q.

Plug in a value for p and q to figure this out.
Here, I'm using 4 for p and 5 for q.

(x+4)(x+5)
x^2+5x+4x+20
x^2+9x+20

Here, the coefficient for the x term is 9 and 9 is the sum of p and q (4+5).
8 0
3 years ago
Read 2 more answers
Please please please help.​
saul85 [17]

Answer:

Step-by-step explanation:

(-5,-3) is a point on the graph.

f⁻¹(-3) = -5

7 0
3 years ago
Which of the following figures has a pentagon as its base? A cube B pentagonal prism C triangular prism D rectangular prism
yan [13]

Answer:

Option B. Pentagonal prism

Step-by-step explanation:

Option (A). Cube

Base of a cube is a square.

Option (B). Pentagonal prism

A prism is always defined by its base.

Example: triangular prism, rectangular prism

Therefore, pentagonal prism will have a base in the shape of a pentagon.

Option (C). Triangular prism

Triangular prism will have a triangular base.

Option (D). Rectangular prism

Rectangular prism will have a rectangular base.

4 0
3 years ago
Hey I just finish my Quiz and I could use some help is a new unit I belive so ya...could you guys help me for 10 point it would
AlladinOne [14]

Answer:

what do u need help with lol

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • All of the following are equal except
    9·1 answer
  • Pauline travels between two cities. first she drives for 45 minutes at an average speed of 85 km/hr then for 16 minutes at an av
    13·1 answer
  • Kerry is comparing the fuel efficiency of two cars, Car A and Car B. Car A lists gas mileage as 32.4 miles per gallon for highwa
    6·1 answer
  • Which statements differentiate DNA and RNA? Check all that apply.
    5·2 answers
  • Evaluate the algebraic expression 6x-2 when<br> X=5/6
    7·1 answer
  • 142% as a mixed numer in simplest form
    13·2 answers
  • The function f (x) varies directly with x and f (x) = 160 when x = 40.
    5·1 answer
  • Let the universal set U = {weekdays}. If T = {Tuesday, Thursday}, what is T'?
    14·1 answer
  • Which choice correctly expresses the number below in scientific notation?
    12·1 answer
  • Please help me with this question.​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!