Odpowiedzi

2010-04-13T19:32:47+02:00
Dane:
Janek - x
Tomek - 3x
Kasia - 3x + 16

x + 3x + 3x + 16 = 303
7x = 303-16
7x = 287 /:7
x = 41

Czyli Janek ma 41, Tomek 123, a Kasia 139.
spr. 41+123+139=303
1 1 1
2010-04-13T19:35:00+02:00
Janek- x
Tomek- 3x
Kasia- 3x+16
razem= 303


x+3x+3x+16=303
7x=303-16
7x=287/:7
x=41

Janek-41
Tomek-3*41=123
Kaisa=3*41+16=139

Odp: Janek ma 41figurek, Tomek 123 figurki, a Kasia 139.
2010-04-13T19:36:04+02:00
Janek (J) = ?
Tomek = 3J
Kasia = 3J +16

J + 3J + 3J + 16 = 303
7J = 303 - 16
7J = 287 / :7
J = 41

Janek = 41
Tomek = 3*41 = 123
Kasia = 123 + 16 = 139

Spr. 41 + 123 + 139 = 303