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
ella [17]
3 years ago
8

Solve for the unknown check your solution by substituting it in the original equation. -X+11=-2X-7​

Mathematics
1 answer:
Debora [2.8K]3 years ago
8 0

Answer:

6

Step-by-step explanation:

-X+11=-2X-7

11=3X-7

18=3X

18/3= 6

You might be interested in
What are the scale factor and center of dilation?
Arisa [49]

Answer:

Step-by-step explanation:

7 0
3 years ago
A 400-meter Olympic-size track can be modeled with a rectangle and two semicircles.
pishuonlain [190]

The answer to both the subparts using the circumference of the circle is:

  • (A) If an athlete runs around the track then the athlete traveled (168.78+73π)m.
  • (B) The area of green space on the track is 0.64m².

<h3>What is a length of a rectangle?</h3>
  • The length of the rectangle is traditionally thought of as being the longer of these two dimensions, however, when the rectangle is depicted standing on the ground, the vertical side is typically referred to as the length.

What is a circumference of a circle?

  • The distance along a circle's perimeter is referred to as its circumference.
  • Circumference of the circle formula: C = 2πr.

Here,

(A) A circuit of a racetrack is equal to the sum of the two lengths of a rectangle and the circumference of the circle.

We get:

  • = 84.39 * 2 + 73π
  • = (168.78 + 73π)m

(B) Let the area of the green space of the track is x.

Then, calculate as follows:

  • 168.78 + xπ = 400
  • x = (400 - 168.78)/π
  • x = 73.64m

So, the inner circle of distance is 73.64 - 73 = 0.64m.

Therefore, the answer to both the subparts using the circumference of the circle is:

  • (A) If an athlete runs around the track then the athlete traveled (168.78+73π)m.
  • (B) The area of green space on the track is 0.64m².

To learn more about the circumference from the given link

brainly.com/question/18571680

#SPJ13

7 0
1 year ago
the length of a rectangle is 4 units greater than its width, and the area of the rectangle can be expressed by the eqaution y =
alekssr [168]
When talking about object measurements, we usually require they be positive.

A suitable domain is x > 0.
(and somewhat less than any substantial fraction of the Earth's dimensions. The numerical value will depend on the chosen units.)
3 0
3 years ago
Read 2 more answers
justin wants to use 376 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should h
Crank
The answer would be D
6 0
3 years ago
Read 2 more answers
In the given figure, find AB, given thatAC = 14 andBC = 9.
Sav [38]

Answer:

Given:

AC = 14      and       BC = 9

AB = ?

Solution:

From the fig:

AC = AB + BC

Putting the values

14 = AB + 9

AB = 14 - 9

AB = 5

(you can also take AB = x or any other variable)

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • What are the zeros of f(x)=x^2-12+36
    15·1 answer
  • Rewrite a. an = 19 - 7(n-1)
    7·1 answer
  • What is the equation of the axis of symmetry?
    5·1 answer
  • What is the slope for the points (5,3) and (5,-9)?
    15·1 answer
  • Fred, Barney, Wilma and Betty together stacked a total of 50 rocks in the quarry. Fred stacked 0.14 of the rocks, Barney stacked
    14·1 answer
  • Find the gradient of the line segment between the points (0,2) and (-2,10).
    12·1 answer
  • Alex bought a new skate board at 20% discount. He paid $72. What percent of the original price did he pay?
    6·1 answer
  • PLEASE HELP ASAP! Will give brainliest to best answer!
    5·1 answer
  • Find z such that 4.8% of the standard normal curve lies to the left of z. (Round your answer to two decimal places)
    15·1 answer
  • Mrs. Perales drove 138 miles in 6 hours. What is the unit rate?<br> Pls help me
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!