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
Advocard [28]
3 years ago
12

Solve the system of equations using substitution. y = x + 6 y = –2x – 3

Mathematics
2 answers:
telo118 [61]3 years ago
5 0

Answer:

x = -3

y= 3

Step-by-step explanation:

y =  x + 6 -----------------------(I)

y = -2x - 3 ---------------------(II)

Substitute y =x +6 in equation (II)

x + 6  = -2x - 3

Add 2x to both sides

x + 2x +6 = -3

Combine like terms

3x + 6 = - 3

Subtract 6 from both sides

3x = - 3 - 6

3x = -9

Divide both sides by 3

x = -9/3

x = -3

Plug in s = -3 in equation (I)

y = -3 + 6

y = 3

Assoli18 [71]3 years ago
4 0
Hope this helps! feel free to clarify

You might be interested in
Ginger wants to join a gym. She goes to the local gym and is told that there is a one-time fee of $100 to join and then a monthl
spin [16.1K]
She has paid $460 after joining the gym for a year. First there is the joining fee of $100. Then $30 a month for a year is 30 x 12 which equals $360.
4 0
3 years ago
Read 2 more answers
A parabola opening up or down has vertex (0,0) and passes through (12, -18). Write its
denis-greek [22]
The equation is y= -1/8x^2
4 0
3 years ago
The surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²? What is the scale factor of the smaller
max2010maxim [7]

Answer:

scale factor of the smaller  prism to the larger prism is B. 21/23

Step-by-step explanation:

Given

surface areas of two similar hexagonal prisms are 882cm² and 1,058 cm²?

scale factor is ratio of sides of two similar objects

thus scale factor for given prism will be = side of smaller prism / side of larger prism

in general rule

If shape of solid has scale factor of k

scale factor of area = k²

scale factor of volume = k³

_____________________________

Given in the problem area of two prism is given

we know area = side^2

scale factor of area = k²

k^2 = area of smaller prism / area of larger prism

k^2 = 882 / 1058 = 441/529\\k = \sqrt{ 441/529} \\k = 21/23

Thus, correct option is B 21/23.

7 0
2 years ago
Please answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!
olya-2409 [2.1K]

Answer:

-10

Step-by-step explanation:

-(x-5) ^2+25

-x+5^2+25

-5 -5

-x^2+20

-2x+20

---- ----

-2 -2

x=-10

// have a great day //

3 0
3 years ago
What 3*10^4÷2.2*10^3 in scientific notation​
Tanya [424]
1.36*10^7
where the 36 repeats so 36363636363636... and so on
4 0
3 years ago
Other questions:
  • Quadrilateral AGHY~Quadrilateral BFRS. Name the corresponding congruent angles and the corresponding ratios of the sides
    7·1 answer
  • Why is the “adjusted balance” method of financing the least expensive for consumers?
    10·1 answer
  • What is the slope of the line that passes through the points (-3, 5) and (1, 7)?
    14·1 answer
  • Which equation is true
    6·2 answers
  • Express 0.7 as a rational number.
    10·1 answer
  • I will brainliest u <br> Please help!
    13·2 answers
  • A model of a volcano has a height of 12 in., and a diameter of 12 in.
    8·2 answers
  • Create a polynomial function in factored form that crosses through the x-axis at -2 and touches the x-axis and turns around at 4
    15·1 answer
  • and because the ________________________________. Therefore, ABCD is a parallelogram because both pairs of opposite sides are pa
    10·1 answer
  • Which point is on the graph of a direct variation equation in which k = 0.4?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!