Question

gasiti toate numerelenaturale de forma 4x5y divizib cu :a)2 b) 5c)10 VAROG DAU COROANA URGENT!!!!!!

Answer 1

cu 10     x nu e important  y=0
cu 5      y= 5 sau 0
cu 2      y par 

Answer 2

4x5y divizibil cu 2 daca si numai daca x=0,1,2,3,4,5,6,7,8,9 y=0,2,4,6,8(prin criteriul de divizibilitate cu 2)
a)4152,4252,4352,4452,4552,4652,4752,4852,4952
4154,4254,4354,4454,4554,4654,4754,4854,4954
4156,4256,4356,4456,4556,4656,4756,4856,4956
4158,4258,4358,4458,4558,4658,4758,4858,4958
4x5y divizibil cu 5 daca si numai daca x=1,2,3,4,5,6,7,8,9 y=0,5(prin criteriul de divizibilitate cu 5)
b)4150,4250,4350,4450,4550,4650,4750,4850,4950
4155,4255,4355,4455,4555,4655,4755,4855,4955
4x5y divizibil cu 10 daca si numai daca x=1,2,3,4,5,6,7,8,9 y=0(prin criteriul de divizibilitate cu 10)
c)4150,4250,4350,4450,4550,4650,4750,4850,4950