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
erastova [34]
3 years ago
11

-7x +14y = -14 -3x +7y = -3

Mathematics
1 answer:
zzz [600]3 years ago
5 0

Answer:

[8, 3]

Step-by-step explanation:

-3⁄7[-7x + 14y = -14] ↷

{3x - 6y = 6

{-3x + 7y = -3

_____________

y = 3 [Plug this back into both equations to get an x-value of 8]; 8 = x

So, using the Elimination Method, I decided to eliminate the <em>x</em>'s by multiplying the top equation by -3⁄7 to end up with 3x, so I can cancel that with -3x in the bottom equation [<em>additive inverses</em> ALWAYS result in zero], and to be genuine, it really does not matter which variable you choose to eliminate.

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

**I have a video that explains how to solve a system of equations in two to three variables. It is titled "Solving Systems of Equations". I encourage you to watch the video and gain alot more knowledge from it, so you can better understand the concept.

You might be interested in
X(1+y)=z, for x <br><img src="https://tex.z-dn.net/?f=x%281%20%2B%20y%29%20%3D%20z%20for%20x" id="TexFormula1" title="x(1 + y) =
olchik [2.2K]
X(1+y)=z or x=z1+y


I really hope this helps heh.
4 0
3 years ago
Tina is cutting construction paper into rectangles for a project. She needs to cut one rectangle that is 15 inches × 12 1/3 inch
erastova [34]

Answer:

Step-by-step explanation:

Remark

This is an "in theory" type of question. She's going to actually need a little more.

Area 1

L = 15

W = 12 1/3

Area = L*W

Area = 15 * 12 1/3                    I wonder if you know what the distributive property is. I'll try it. If you don't understand, leave a remark

Area = 15 * (12 + 1/3)              Multiply both parts by 15

Area = 15*12 + 1/3 * 15

Area = 180 + 5

Area =                                                                          185 square inches.

Area 2.

This is a little harder because their are

2 fractions.

The easy way to do this is change to decimals

L = 10 1/3 = 10.33333333

W = 10 1/4 = 10.25

Area = 10.3333333 * 10.25

Area =                                                                 <u>       105.92</u>      Add

Total Area

The total area =                                                        290.92

8 0
3 years ago
Find the slope of the line that passes through these given points (-4,3) and (1,1)​
wel

Answer:

-2/5

Step-by-step explanation:

Slope is given by rise/run also known as y2-y1/x2-x1. --3 = -2, and 1 - (-4) = 5 hence -2/5.

3 0
3 years ago
A regular hexagon has a radius of 20 in. What is the approximate area of the hexagon?
lawyer [7]

Answer:

1,038 in2

Step-by-step explanation:

In a regular hexagon, the radius and side length are equal in length... That makes the answer 1038 in.2 correct?

8 0
4 years ago
Read 2 more answers
The value of x is 1. Find the value of each expression and type
krek1111 [17]

Answer:

can I get a hiaaa

How was the government able to make children go to residential school?

6 0
3 years ago
Other questions:
  • the base of this solid crate has an area of 6 square centimeters the height of the crate is 4 meters what is the volume of the c
    13·2 answers
  • What the answer question
    8·1 answer
  • You have 6 green marbles, 23 blue marbles, and 18 red marbles. what is the probability of choosing a red marble. express your an
    15·1 answer
  • choose the most responsible estimate of the volume of a box with dimensions as follows width =4.9cm length=5.1cm height =2.8cm
    15·2 answers
  • (4,2);x=-3 how do you solve this problem
    9·1 answer
  • Which best describes the solution set of the compound inequality below?
    13·1 answer
  • If
    7·1 answer
  • Geometry please help test
    11·1 answer
  • The redwood national park is home to some of the largest trees in the world
    9·2 answers
  • (DESPERATE PLEASE HURRY)<br> question down below<br> please show the work
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!