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
Scrat [10]
3 years ago
7

Solving and graphing systems of equations

Mathematics
1 answer:
dusya [7]3 years ago
3 0
Hey Jackson!

-4x + 3y = 3
y = 2x + 1

Ok so what we need to do is solving y= 2x + 1 for y.

So let's start by using the substitution method :)

Substitute 2x + 1 for y in -4x + 3y = 3

-4x+ 3y = 3

-4x + 3(2x + 1) = 3

-4x + (3)(2x) + (3)(1) = 3

-4x + 6x + 3 = 3

2x + 3 = 3

Subtract 3 on both sides

2x + 3 - 3 = 3 - 3

2x = 0

x = 0/2

x = 0

So now since we find the number for x, we gonna use it to help us find the value for y.

To find y, we need to substitute 0 for x in y = 2x + 1

y = 2x + 1

y = 2(0) + 1

y = 0 + 1

y = 1

Thus,

The answer is: y = 1 and x = 0

How to graph?

You need to go on the thing where they put the numbers. y is located on top which has the positive numbers. So when you get there, make a line that comes from the top right side all the way to the bottom left sides. Remember that y = 1 so the line must pass through 1

I am not good with explanation. So I'll leave the graph down below then you'll see what I am talking about :)

Let me know if you have any questions. As always, it is my pleasure to help students like you!


You might be interested in
In triangle ABC, M< A = 90° And M< C = 22° what is the measure of angle B
dedylja [7]

Answer:

The answer for ∠B = 68°

Step-by-step explanation:

Total angle in a triangle is 180° so you can just substract ∠A and ∠C from 180° :

∠A + ∠B + ∠C = 180°

90° + ∠B + 22° = 180°

∠B = 180° - 90° - 22°

= 68°

6 0
3 years ago
What are acceptable ways to represent the statement "x is a distance of five from 0." Choose ALL that apply.
Ahat [919]
Hello! You should select a, b, and c.
Think of it like on a number line, x could be 5, or -5 and still be the same distance from 0. Absolute vales are the same way, so if the answer is 5 or -5, its right! It cant be the last one because x, must only be 5 or -5. Hope that helps!
5 0
3 years ago
Read 2 more answers
Liza buys 4 yards of fabric for $8.48. How much was the fabric per yard?
levacccp [35]

Answer:

the fabric per yard was 2.12

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve for x<br> 4r – 9 – 6x = 21
ehidna [41]

Answer:

X= 30-4r/-6

Step-by-step explanation:

1. Move the 9 to the other side. (21+9=30)

2. subtract the 4r and move it to the other side (-6x=21-4r)

3. divide both sides by -6

5 0
3 years ago
a sculpture is formed from a cylinder resting on top of a cuboid. the cylinder has a radius 40cm and height 70cm. the cuboid mea
frosja888 [35]

<u>Answer-</u>

\boxed{\boxed{\text{Mass}=10.0447256\ ton}}

<u>Solution-</u>

The dimensions of the cuboid is, 80×80×140 cm

So, its volume will be =80\times80\times140=896000cm³

The dimensions of the cylinder is, radius = 40cm, height = 70cm

So, its volume will be \pi r^2h=\pi\times40^2\times70=351792cm³

Total volume,

V=V_{\text{Cylinder}}+V_{\text{Cuboid}}\\\\=351792+896000\\\\=1247792\ cm^3

As we know,

\Rightarrow \text{Density}=\dfrac{\text{Mass}}{\text{Volume}}

\Rightarrow \text{Mass}=\text{Density}\times \text{Volume}

\Rightarrow \text{Mass}=8.05\times 1247792=10044725.6\ g

\Rightarrow \text{Mass}=10044725.6\times 10^{-6}=10.0447256\ ton


8 0
3 years ago
Other questions:
  • What is the best compounding period through annuity to pay back a debt of $4500 for college through 4 years?and why? Note:compou
    6·1 answer
  • Suppose Q and R are independent events. Find P(Q and R) if P(Q) =4/5 and P(R) =4/11
    14·1 answer
  • If 16=x/20 then x equals..<br><br>please explain the steps on how to do this problem
    14·2 answers
  • 8. Parallel to the line y = 2x + 5 and contains the
    11·1 answer
  • What is a21 of the arithmetic sequence for which a7=-19 and a10=-28
    12·1 answer
  • Find m&lt;1.<br> A.63<br> B.69<br> C.76<br> D.63
    8·1 answer
  • Anna invested 2500 at an annual rate of 5% how long will it take until Anna earns 1125 in interest
    5·1 answer
  • Help this should be simple ​
    8·1 answer
  • HELPPPP please help for brainlist !!!!!!!!!!!!!!
    8·1 answer
  • The perimeter of a square is 24 inches. Complete the equation and solve to find the length of each side, s.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!