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
Verizon [17]
3 years ago
15

Solve the following system of equations. 2x+y=3 I= 2y - 1 x= y=

Mathematics
1 answer:
marin [14]3 years ago
8 0

<em>Note: I am assuming your second equation is:</em>

<em>x = 2y - 1</em>

<em></em>

Answer:

The solution to the system of equations is:

  • x = 1
  • y = 1

Step-by-step explanation:

Given the system of equations

2x+y=3

x = 2y - 1

solving the system of equations using the elimination method

\begin{bmatrix}2x+y=3\\ x=2y-1\end{bmatrix}

Arrange equation variables for elimination

\begin{bmatrix}2x+y=3\\ x-2y=-1\end{bmatrix}

Multiply x-2y=-1 by2:     2x-4y=-2

\begin{bmatrix}2x+y=3\\ 2x-4y=-2\end{bmatrix}

subtracting the equations

2x-4y=-2

-

\underline{2x+y=3}

-5y=-5

now solve -5y = -5 for y

-5y=-5

Divide both sides by -5

\frac{-5y}{-5}=\frac{-5}{-5}

Simplify

y=1

For 2x+y=3 plug in y=1

2x+1=3

subtract 1 from both sides

2x+1-1=3-1

Simplify

2x=2

Divide both sides by 2

\frac{2x}{2}=\frac{2}{2}

Simplify

x=1

Therefore, the solution to the system of equations is:

  • x = 1
  • y = 1
You might be interested in
10. The temperature on Monday was -5 degrees Celsius. By Tuesday the temperature rose to -2 degrees Celsius. Find the change in
Setler79 [48]

Answer:

The change in temperature is 3 degrees celsius.

Step-by-step explanation:

4 0
3 years ago
Four plumbers estimated the length of the radius of a cylindrical pipe. the estimates made by the plumbers are listed. • plumb
myrzilka [38]

The correct order of the radius  \sqrt{3} /11 \ , \pi /24 ,  3/25  ,  9/100 .

What is decreasing and increasing order?

A set of data is said to be in descending order, often referred to as decreasing order, when it is arranged from highest to lowest or largest to smallest.

The same concepts apply regardless of the type of information you're working with, whether it's letters, dates, sizes of things or any other group of information like numbers or dates.

For instance, arranging a group of numbers in descending order means doing so from biggest to smallest value.

Ascending order, often known as ascending order of importance, is the exact opposite of declining order.

The order of the items is lowest to highest value. The lowest value is placed first in the order, while the highest value is placed last.

The value of \sqrt{3} = 1.732

so \sqrt{3} / 11 = 1.732/11

=1732/11000

The value of pi = 3.14

so \pi / 24  = 3.14/24

= 314/2400

To know more about ascending descending order, visit:

brainly.com/question/14478145

#SPJ4

5 0
1 year ago
Length of the hypotenuse of the triangle to the nearest tenth of a metre
Lemur [1.5K]

Answer:

The length of the hypotenuse is 2.4m

Step-by-step explanation:

well to start we have to know the relationship between angles, legs and the hypotenuse

α = 55°

o: opposite  = 2.0m

h: hypotenuse

sin α = o/h

cos α= a/h

tan α = o/a

we see that it has (angle, hypotenuse, opposite)

we look at which meets those data between the sine, cosine and tangent

is the sine

sin α = o/ah

Now we replace the values ​​and solve

sin 55 = 2.0/h

0.81915 = 2.0/h

h = 2.0 / 0.81915

h = 2.4415 m

round to the nearest tenth

h = 2.4415 = 2.4 m

The length of the hypotenuse is 2.4m

5 0
4 years ago
Read 2 more answers
1) Simplify the product using the distributive property.
uysha [10]
X^2 + 2x -8
Hope this helps :))

5 0
3 years ago
An archer has $62 to spend on a new archery
sasho [114]

Answer:

5 more arrows

Step-by-step explanation:

62 - 42 = 20  20 / 4 = 5

The archer can buy 5 more arrows.

Hope this helps! If it did, please give brainliest! It would help a lot! Thanks! :D

7 0
3 years ago
Other questions:
  • How to solve an equation for x with natural log of x
    15·1 answer
  • in a department store a 50$ dress is marked, saved 25% what is the discount what is the sale price of the dress
    13·2 answers
  • How to change miles to centimeters
    5·2 answers
  • Let P(2, 3) be a point on a figure. The figure is dilated by a scale factor of 4.
    11·1 answer
  • - f/4 - 9 + 2f with f = 12
    14·1 answer
  • Cynthia wants to buy a rug for a room that is 18ft wide and 26ft long. She wants to leave a uniform strip of floor around the ru
    11·1 answer
  • Ryan says that a rectangle is a square because it has 4 right angles. Addy says that a rhombus is a square because it has 4 equa
    13·1 answer
  • 6th grade math i mark as brainliest​
    13·1 answer
  • 35-2x4 to the 2 power
    7·2 answers
  • Rewrite the equation in Ax+By=C form.<br> Use integers for A, B, and C.<br> y-3=6(x+6) I’m
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!