Vajad kellegagi rääkida?
Küsi julgelt abi
☰
Ülikool
Kutsekool
Keskkool
Põhikool
Telli VIP
Kahe arvu summa on 82. Kui üht arvu suurendada 14 võrra ja teist vähendada 21 võrra, siis esimese ja teisehe o arvu van 27. Leia need arvud.
K&V
>>
Matemaatika
| Põhikool | 0 punkti | 1718 vaatamist |
20:36 01/03/21
381363
kaheksas klass tunnikontroll karantiini ajal keegi oskab aidata
Vastuse lisamiseks pead
sisse logima
Tead vastust?
Vasta küsimusele
Vastuseid:
32
| Hääli:
7
Acinajjj
0
Vastus 37
Põhjalikult
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
09:29 13/05/21
399908
1
37
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
20:55 04/03/21
400608
1
45 ja 37
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
20:34 18/04/22
413587
1
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
15:05 03/10/21
Katherosen
1
(X+14)-(y-21)=27 x+y=82 x=82-y (82-y+14)-(y-21)=27 82-y+14-y+21=27 -2y=-90 y=45 x=82-45 x=37
16:12 25/01/23
396389
1
ikka
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
21:08 13/05/21
394069
1
45 ja 37
13:07 19/02/23
laura.M.
1
Need arvud on 37 ja 45
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
10:17 24/03/21
447616
0
37 ja 45
x+y=82 ja (x+14)-(y-21)=27
esimesest võrrandist x=82-y, asendan teise ja avan sulud: 82-y-y+21=27; saan -2y=-90, s.t. y=45 Seega teine arv on 45. Leian esimese arvu 82-45=37.
14:39 31/01/23
Gileadrol
0
45 ja 37
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
21:00 25/01/24
374830
0
esimene arv on 37 ja teine arv on 45.
x+y=82
(x+14)−(y−21)=27
x+14−y+21=27
x−y+35=27
x−y=27−35
x−y=−8
korrutame mõlema poole võrrandit -1-ga
−(x+y)=−82
−x−y=−82
−x−y+x−y=−8−82
−2y=−90
2y=90
y=90/2
y=45
x+45=82
x=82−45
x=37
15:45 18/02/24
Adela
0
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
15:30 19/01/23
Markos2006
0
Y=45 ja X=77
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
19:01 01/12/22
433356
0
(x+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
vast used on 45 ja 37
17:43 18/05/22
395998
0
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
17:13 03/03/21
432641
0
45 ja 37
x+y=82
(x+14)-(y-21)=27
x=82-y
82-y+14-y+21=27
-2y=27-82-14-21
-2y=-90/(-2)
y=45
x=82-45
x=37
18:31 10/05/22
billite
0
37
vastus on 37
15:29 07/03/25
422980
0
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
22:47 15/01/22
422490
0
37 ja 45
(x+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
20:04 10/01/22
421172
0
x=37
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=3
18:38 15/12/21
419942
0
Arvud: 37 ja 45
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
14:23 03/12/21
414983
0
(x;y)=(71, 11)
12:48 17/10/21
ergo243
0
444
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
11:58 04/10/21
hally
0
37 ja 45
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
13:44 02/09/21
tots96
0
mate
ma tegelt ei tea vastust aga tahaks punkte hihih
16:32 18/05/21
kaiumees
0
37 ja 45
16:13 18/05/21
311105
0
6 ja 47
08:52 14/05/21
YellowRaven
0
x=37 y=45
(x+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
14:16 10/05/21
katrerelve
0
A=37, b=45
A+b=82
(A+14)-(b-21)=27
A=82-b
82-b+14-b+21=27
2b=90
B=45
A=82-45=37
13:58 06/05/21
miinasooster
0
37
(X+14)-(y-21)=27
x+y=82 --> x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45 --> x=37
06:39 27/04/21
207708
0
37
x+y=82
(x+14)-(y-21)=27
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
19:13 18/03/21
Silinder123456
0
(X+14)-(y-21)=27
x+y=82
x=82-y
(82-y+14)-(y-21)=27
82-y+14-y+21=27
-2y=-90
y=45
x=82-45
x=37
Antud lahendus on õige
12:05 16/03/21
Sellel veebilehel kasutatakse küpsiseid. Kasutamist jätkates nõustute küpsiste ja veebilehe
üldtingimustega
Nõustun
annaabi.ee 
