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
AnnyKZ [126]
3 years ago
13

How do I solve this .... question in the image. thank you​

Mathematics
1 answer:
dezoksy [38]3 years ago
8 0

Answer:

Below

Step-by-step explanation:

● x-20 = y+20 (1)

● 2(y-22) = x+22 (2)

This is a system of simulataneous equations

Let's simplify the expressions first

● x -20 = y + 20 (1)

Add 20 to both sides

● x -20 + 20 = y+20 +20

● x = y + 40 (1)

● 2(y-22) = x+22 (2)

● 2y - 44 = x +22

Substrat 22 from both sides

● 2y-44-22 = x+22-22

● 2y -66 = x (2)

This is the new system:

● x = y+40 (1)

● x = 2y-66 (2)

Substract (2) from (1)

● x-x = y+40-(2y-66)

● y+40-2y+66 = 0

● -y +106 = 0

● y = 106

Replace y with 106 in (1)

● x = y +40

● x = 106+40

● x = 146

So the solutions are (146,106)

You might be interested in
Find the value of x - Secant and Tangent Angles in Circles
VladimirAG [237]

Answer:

  C.  70°

Step-by-step explanation:

The inscribed angle marked 15° intercepts an arc that is double that measure, so the intercepted arc on the right is 2×15° = 30°.

The external angle marked 20° is half the difference of the intercepted arcs, so is ...

  20° = (1/2)(x - 30°)

  40° = x - 30° . . . . . . multiply by 2

  70° = x . . . . . . . . . . . add 30°

The value of x is 70°.

6 0
3 years ago
A volume of the cone is (1/3) the volume of a cylinder. The volume of the sphere is what fraction of the volume of the cylinder?
xenn [34]

Answer:

4/3

Step-by-step explanation:

To know this, let's write down the formulas for the volume of cylinder and sphere.

Vs = 4/3πr³   (1)

Vc = π r² h    (2)

Now, we do have a little problem here and its the fact that the sphere do not have a height like the cylinder do. But in this case so if you want to have an idea of the fraction of the volume, we will assume that the cylinder has the same height as its radius. Assuming this we have the following:

Vs / Vc = 4πr³ / 3πr²h

Vs/Vc = 4πr³ / 3πr³

From here, we can cancel out the values of π and r³:

Vs/Vc = 4/3

<h2>Vs = 4/3 Vc</h2>

Thus we can conclude that the volume of the sphere is 4/3 the volume of a cylinder.

Hope this helps

8 0
3 years ago
According to a Pew Research Center study, in May 2011, 40% of all American adults had a smart phone (one which the user can use
kolbaska11 [484]

Answer:

Step-by-step explanation:

7 0
3 years ago
You work 40 hours/week for 50 weeks and are given the option to be paid hourly or to go on salary. In which situation will you e
Alenkasestr [34]

Answer:

40/50 weeks is the ans

plzzz give brainliest

5 0
3 years ago
The notation y ​= f(x) is called​ _______ notation.
Elis [28]

Answer:

Function notation

Step-by-step explanation:

y=f(x) is in function notation

8 0
3 years ago
Other questions:
  • What is the ascending order of 7.88,7.885,7.8809,and 7.89
    5·1 answer
  • If 75 is added to a number, the result is 39 less than three times the number.find the number
    9·1 answer
  • there are 30 students in a class. five of them are randomly selected to form a dance comittee how many different comittees can b
    10·2 answers
  • Arithmetic Geometric or Neither...
    10·1 answer
  • 50 POINTS PLS HELP
    12·1 answer
  • 6th grade help please
    6·2 answers
  • Katt and sanjeev are collecting money for charity. For every £2 that kat collects, sanjeev collects £3. They collect £255 in tot
    11·1 answer
  • Select all the systems of equations that have exactly one solution.
    11·1 answer
  • Shakespeare wrote: All the world's a stage,/ And all the men and women merely players;/ They have their exits and their entrance
    11·2 answers
  • What is the solution to the equation below? Round your answer to two
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!