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
Leto [7]
3 years ago
15

2x+y=7 for y neeedd help

Mathematics
1 answer:
masya89 [10]3 years ago
8 0

Answer:

  • y = -2x + 7

Step-by-step explanation:

<u>Solve for y:</u>

  • 2x + y = 7

Add - 2x to both sides

  • 2x + y - 2x = 7 - 2x
  • y = 7 - 2x

or

  • y = -2x + 7
You might be interested in
The equation shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A, in ast
Oxana [17]

Answer:

The equation shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A, in astronomical units, AU. If planet Y is twice the mean distance from the sun as planet X, by what factor is the orbital period increased?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Calculate pt3 such that a line from pt1 to pt3 is perpendicular to the line from pt1 to pt2, and the distance between pt1 and pt
Leni [432]
Let the point_1 = p₁ = (1,4)
and      point_2 = p₂ = (-2,1)
and      Point_3 = p₃ = (x,y)

The line from point_1 to point_2 is L₁ and has slope = m₁
The line from point_1 to point_3 is L₂ and has slope = m₂
m₁ = Δy/Δx = (1-4)/(-2-1) = 1
m₂ = Δy/Δx = (y-4)/(x-1)
L₁⊥L₂ ⇒⇒⇒⇒ m₁ * m₂ = -1
∴ (y-4)/(x-1) = -1 ⇒⇒⇒ (y-4)= -(x-1)
(y-4) = (1-x) ⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒⇒ equation (1)

The distance from point_1 to point_2 is d₁
The distance from point_1 to point_3 is d₂
d = \sqrt{Δx^2+Δy^2}
d₁ = \sqrt{(-2-1)^2+(1-4)^2}
d₂ = \sqrt{(x-1)^2+(y-4)^2}
d₁ = d₂
∴ \sqrt{(-2-1)^2+(1-4)^2} = \sqrt{(x-1)^2+(y-4)^2} ⇒⇒ eliminating the root
∴(-2-1)²+(1-4)² = (x-1)²+(y-4)²
 (x-1)²+(y-4)² = 18
from equatoin (1)  y-4 = 1-x
∴(x-1)²+(1-x)² = 18            ⇒⇒⇒⇒⇒ note: (1-x)² = (x-1)²
2 (x-1)² = 18
(x-1)² = 9
x-1 = \pm \sqrt{9} = \pm 3
∴ x = 4 or x = -2
∴ y = 1 or y = 7

Point_3 = (4,1)  or  (-2,7)












8 0
3 years ago
The graph shows the distances traveled by two runners over several minutes.
Fynjy0 [20]
I think its runner B because its lower down then runner A hope this helps

6 0
3 years ago
Farmer has to transport a fox, a chicken, and a sack of corn across a river. she can carry only one item at a time. if left toge
vagabundo [1.1K]
Step by step guide
1)carry the chicken over and put it there
2) farmer cross alone to carry the corn over and carry the chicken back
3) put the chicken there and carry the fox to put there with th3 corn
4) go back to get the chicken
6 0
2 years ago
Joe has a square tablecloth with a total area of 48 square feet. Which
Karo-lina-s [1.5K]
6.9ft
So clearly in this situation the side length of the cloth is the square root of 48, which is 6.928.... closest to 6.9ft
5 0
3 years ago
Read 2 more answers
Other questions:
  • I need with 2n-7=5n-10 also
    13·1 answer
  • charlies car used 3.62 galons of gas for 84 miles drive. how many miles to the gallon did his car get?
    12·1 answer
  • Which of the following inverse functions are defined for x=-1/2? Select all that apply.
    10·1 answer
  • Kirenna's boss, Tanae, believes that women are not capable of making top-level decisions. Kireena's decisions are often sideline
    8·1 answer
  • If the radius of the glass container is 2 inches and the height is 3 inches, how much wax will she need to fill the container?
    5·1 answer
  • A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Fi
    10·1 answer
  • Solve three and two fifths plus three and four sixths.
    6·2 answers
  • 1: Find the total cost of 25 pens and 75 books
    7·1 answer
  • Find the slope 3,3 and 1,8​
    7·1 answer
  • What is 2/3 divided by 2
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!