Question

Gasiti toate numerele naturale de forma 4x5y, divizibile cu
a)2
b)5
c)10 
Va rog repede

Answer 1

cu 2:4251,4252,4253
cu 5: 4556,4558,4559
cu 10: 4050,4060,4070

Answer 2

[tex]4x5y~cu~2: \\ x~poate~fi~orice~numar~de~la~0~la~9; \\ y~trebuie~sa~fie~numar~par~neaparat; \\ x=\{0,1,2,...9\} \\ y=\{0,2,4,6,8\} \\ Numerele: \\ 4050,4052,4054,4056,4058,4150,4152,4154,4156,4158...... \\ 4950,4952,4954,4956,4958. \\ 4x5y~cu~5: \\ x~poate~fi~orice~numar~de~la~0~la~9; \\ y~trebuie~sa~fie~ori~0,~ori~5; \\ Numerele: \\ 4050,4055,4150,4155,4250,4255......4950,4955. \\ \\ 4x5y~cu~10: \\ x~poate~fi~orice~numar~de~la~0~la~9; \\ y~trebuie~sa~fie~0; \\ Numerele:[/tex]
$4050,4150,4250,4350,4450,4550,4650,4750,4850,4950.$