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
Luda [366]
3 years ago
13

Solve the system using substitution. 3x - 4y = 11 y + 3x = 1

Mathematics
2 answers:
Dmitry [639]3 years ago
5 0

Answer:

x= 1

y= -2

Step-by-step explanation:

1. y+3x=1 subtract 3x from both side to get y= 1-3x

2. Put the new found y value in the equation

3x-4(1-3x)=11

3. Distribute the 4

3x-4+12x=11

4. Add 4 to both sides

3x+12x=15

5. Add the x's

15x=15

6. Solve for x

x=1

7. Plug in the x in the y equation y= 1-3x

y=1-3(1)

8. Solve for y

y= -2

NISA [10]3 years ago
3 0

Answer:

i not speak english

Step-by-step explanation:

You might be interested in
PLLEASE ANSWER THIS FOR ME
stiv31 [10]

Answer:

<h2>120 square meters</h2>

Step-by-step explanation:

To find the SA of 2 Triangles, we will use the formula... B x H, and the Base and Height is going to be the dimensions of just 1 triangle, but it's going to give the answer for 2 triangles, in this shape, we have 2 triangles.

SA = B x H

= 6 x 4

= 24

24 square meters for both of the triangles

Now, let's find the SA of the rectangle on the bottom...

SA = L x W

= 6 x 6

= 36

36 square meters for 1 of the 3 rectangular parts, the one on the bottom

Now, lets find the SA of the 2 rectangles on the top. We'll use the dimensions of 1 rectangle and find the answer for 2 answers by using the formula...

SA = L x W x 2

= 6 x 5 x 2

= 30 x 2

= 60

60 square meters for the 2 rectangles on the top.

Now, we have to add all of our answers.

24 + 36 + 60 = 120 square meters

<h2>Hence, the SA (surface area) of this shape is 120 square meters.</h2>

~Brainly Master - Helping Students~

4 0
3 years ago
You can buy a ten pound bag of apples for 12.70 express this situation in as a ratio
Sav [38]
What does it want a unit rate? or?

7 0
4 years ago
Use the distributive property to multiply<br><br> -7 (2x - 4)<br><br> I think it's -14x + 28
SashulF [63]
-14x+28 is correct. Good job!
5 0
4 years ago
Read 2 more answers
P and Q are two points on the line x-y+1=0 and are at distance 5 from the origin. Find the coordinates of P and Q.
Rashid [163]

Answer:

P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. Find the area of the triangle OPQ. P and Q are two points on the line x-y+1=0 and are at the distance 5 units from origin. ... The area of PQR is 7*7/2 = 49/2 sq units.

4 0
3 years ago
Which of the Following best describes a cylinder?
maksim [4K]

Answer:

D

Step-by-step explanation:

all the options seems similar..but i can find the D more suitable

7 0
3 years ago
Other questions:
  • This is an easy question but what is a short definition for round/rounding
    5·1 answer
  • Which is the best to buy?
    8·1 answer
  • I need help with this question please<br> ASAP!!!!!!!
    15·1 answer
  • What is half of 27 because i dont know how to do this
    7·2 answers
  • Complete the missing parts of the table for the following function. y=7x​
    9·2 answers
  • Triangle ABC is similar go triangle DEC which equation explains with the slopes of CE and CB are the same
    13·1 answer
  • Hey math can you help
    5·1 answer
  • Which expression is equivalent to the expression shown?
    9·1 answer
  • What is the slope of the line?
    11·1 answer
  • How many layers of 1 inch cubes fill the carton
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!