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
Tcecarenko [31]
3 years ago
6

I need help solving this

Mathematics
1 answer:
castortr0y [4]3 years ago
6 0

Answer:

x=10

y=25

Step-by-step explanation:

3x-10+5x+30+6x+20=180

14x+40=180

14x=180-40

14x=140

x=10

9x-10=4y-20

9(10)-10=4y-20

90-10=4y-20

80=4y-20

80+20=4y

100=4y

25=y

You might be interested in
Which equation represents the line through (0,0) and (3,4)? a. y=3/4x b.y=4/3x c.y=4x d.y=3x
love history [14]

Answer:

b

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (0, 0 ) and (x₂, y₂ ) = (3, 4 )

m = \frac{4-0}{3-0} = \frac{4}{3}

y = \frac{4}{3} x → b

3 0
2 years ago
What is the equation of the line in point-slope form?
evablogger [386]

Answer:

y +500 = -\frac{1}{5}(x - 100)

Step-by-step explanation:

Given

The attached graph

Required

Determine the equation in point slope form

From the graph, we have the following points;

(x_1,y_1) = (-400,-400)

(x_2,y_2) = (100,-500)

First, we calculate the slope (m):

m = \frac{y_2 - y_1}{x_2 - x_1}

m = \frac{-500 - (-400)}{100- (-400)}

m = \frac{-500 +400}{100+400}

m = \frac{-100}{500}

m = -\frac{1}{5}

The equation is then calculated using:

y - y_2 = m(x - x_2)

Substitute x and y values

y - (-500) = -\frac{1}{5}(x - (100))

y +500 = -\frac{1}{5}(x - 100)

8 0
3 years ago
The table represents a function.
Elenna [48]

f(5) is -8 ⇒ 1st answer

Step-by-step explanation:

Function is a relation between set of of ordered pairs (x , y),and every x has only one y

Examples:

  • {(-1 , 2) , (2 , 4) , (5 , -3)} is a function because x = -1 has only y = 2, x = 2 has only y = 4 and x = 5 has only y = -3
  • {(-2 , 4) , (0 , -1) , (-2 , 5)} is not a function because x = -2 has y = 4 and 5

The notation of the function is f(x) = y

The table:

→    x     :    f(x)

→    -4    :    -2

→    -1     :    5

→     3    :    4

→     5    :   -8

From the table

∵ x = -4

- The corresponding value of y to x = -4 is -2

∴ f(-4) = -2

∵ x = -1

- The corresponding value of y to x = -1 is 5

∴ f(-1) = 5

∵ x = 3

- The corresponding value of y to x = 3 is 4

∴ f(3) = 4

∵ x = 5

- The corresponding value of y to x = 5 is -8

∴ f(5) =-8

f(5) is -8

Learn more:

You can learn more about the functions in brainly.com/question/10879401

#LearnwithBrainly

3 0
3 years ago
Find the mid-point of the line segment joining the points (10, 13) and (-7, 7)? ​
PIT_PIT [208]

Answer:

(3/2,10)

Step-by-step explanation:

Mid point is ((10-7)/2,(13+7)/2)=(1.5,10)

4 0
3 years ago
3x⁷+4|x| is it polynomial function ​
Alex777 [14]

Answer:

3x^7+4|x| = 3x^7+4x [if~x\geq 0]\\3x^7+4|x|=3x^7-4x [if~x

8 0
3 years ago
Other questions:
  • What is the area of this trapezoid?<br><br> 50 in²<br><br> 108 in²<br><br> 126 in²<br><br> 192 in²
    10·2 answers
  • Find mPQ to the nearest degree
    10·1 answer
  • You are given the coordinates of four points that are the vertices of a parallelogram. You need to determine if the parallelogra
    14·1 answer
  • A sample of 65 observations is selected from one population with a population standard deviation of 0.75. The sample mean is 2.6
    5·1 answer
  • Solve the inequality-24≤×-3-8×​
    12·1 answer
  • Find the value of x 29 (6x + 1)
    5·2 answers
  • Pls help!!!!!!!!!!!!
    12·1 answer
  • Erika collects sports cards. The graph shows how many sports
    5·1 answer
  • GUYS PLEASE HELP!!A gardener plans to construct a triangular garden using logs for the edges. She has logs that measure
    15·1 answer
  • Question 3 of 5<br> 764 =<br> O A. 16<br> OB. 4<br> O c. 2<br> O D. 8
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!