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
Dovator [93]
3 years ago
6

Anul acesta varsta tatalui este de 4 ori mai mare decat a fiului,dar peste 20 de ani va fi de 2 ori mai mare.Cati an va avea fiu

l peste 5 ani.
Mathematics
1 answer:
Xelga [282]3 years ago
3 0
T = varsta tatalui
f = varsta fiului

anul acesta: t = 4 x f
peste 20 de ani: t+20 = 2 x (f+20)

=> 4 x f +20 = 2 x f + 2 x 20
4 x f - 2 x f = 2 x 20 - 20
2 x f = 20
f = 10
anul acesta fiul are 10 ani
peste 5 ani fiul va avea...
You might be interested in
Select Translation, Reflection, or Rotation to identify the single transformation that transforms ∆PQR to ∆P'Q'R'.
Sergeeva-Olga [200]

Part A

Represents 'Reflection'. This is so because the y-coordinates of P, Q and R remain the same in P' , Q' and R', and only the x-coordinate changes. Hence, it is reflection along the y-axis

Part B

Represents 'Rotation'. Here, the x-coordinates and y-coordinates of each of the points have changed, and the figure has been rotated clockwise around the point Q by 90°

Part C

Represents a combination of 'Translation' and 'Reflection'. Here either of the two has happened:

  • First, all the points have been moved downwards by a fixed distance, thus changing the y-coordinate. Then, the resulting image has been reflected along the y-axis, thus changing the x-coordinate of all the points
  • First, all the points have been moved to the right by a fixed distance, thus changing the x-coordinate. Then, the resulting image has been reflected along the x-axis, thus changing the y-coordinate of all the points

Part D

Represents 2 'Translations'. Here the image has been shifted by a fixed distance in both the downward direction and the right direction. Thus, it has resulted in change of both x and y coordinates.

8 0
3 years ago
Which of the following represents the most accurate estimation of 4+8
UkoKoshka [18]
<span>5

estimating sums of single digit numbers which of the following represents the most accurate estimation of 4+8? answer 5,10,20, and 25</span>
3 0
3 years ago
Read 2 more answers
Find the area of the equilateral triangle
uranmaximum [27]

Answer:

Step-by-step explanation:

Suppose that the side length is s.  Imagine that one side is level.  Draw a vertical line through the top vertex perpendicular to the base (level side).  Label this vertical line "h."  Then h and s are related as follows:

                               √3          h

sin 60 degrees = ------- = --------

                                 2           s

                                                                   s√3

and so h = the height of the triangle =  -----------

                                                                       2

The area of this triangle is (1/2)(base)(height), which here is:

(1/2)(s/2)( s√3 /2), or

        (s^2)√3

A = ---------------

               8                                

8 0
3 years ago
Read 2 more answers
273.261 in word form
PilotLPTM [1.2K]
Two hundred and seventy three point two hundred and sixty one
8 0
3 years ago
Find the theoretical probability of randomly chose a vowel ( a e i o u)
olganol [36]
There are 26 letters with 5 vowels. That is a 5/26 chance of randomly picking a vowel. Hope this is helpful!
8 0
3 years ago
Other questions:
  • I need to solve this equation: x-2/(x-3)=(x-1)/(3-x)
    6·2 answers
  • A deck of cards is shuffled and then divided into two halves of 26 cards each. A card is drawn from one of the halves; it turns
    14·1 answer
  • 4/7 is subtracted from a positive number and the result is multiplied by 7 to obtain the original number. What is the number?
    13·1 answer
  • QUICK I NEED HELP FAST
    9·2 answers
  • Pleaseee HELPPP will mark Brainly
    13·2 answers
  • If f(x)=3x+2 what is f(5)?
    15·1 answer
  • If a=b-2x/x+c,then what is the value of x in terns of a,b &amp; c ?​
    11·1 answer
  • Which of the following represents a relation that is not a function?
    6·1 answer
  • A wildlife biologist catches, tags, and then releases a number of wasps. Later she catches 55 wasps and finds that 7% are tagged
    11·1 answer
  • Find the length of the hypotenuse
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!