4) obter as geratrizes das seguintes dizimas periódicos a)0,444... b)3,888... c)9,1515... d)4,7222... e)8,715715...
4) obter as geratrizes das seguintes dizimas periódicosa)0,444... b)3,888... c)9,1515... d)4,7222... e)8,715715... f) 5,4317878
alguém me ajuda Por favor!urgente!
1 Resposta
a) x = 0,444 10x = 4,444
10x - x = 4,444 - 0,444
9x = 4
x = 4
9
b) x = 3,888 10x = 38,888
10x - x = 38,888 - 3,888
9x = 35
x = 35
9
c) x = 9,151515 100x = 915,151515
100x - x = 915,15 - 9,15
99x = 906
x = 906/99 >>>
302
33
d)4,7222
x=4,7222.(100)
100x=472,7222
- x= 4,7222
99x= 468
x= 468
99
e)x=8,715715
8715-8
99
R=8707
999
f) x = 5,4317878
1000x = 5431,7878
100000x =543178,7878
100.000x - 1.000x = 543178,78 - 5431,78
99.000x = 537.747
x = 537.747 / 99.000 >>>
R=179.249
33.000
#FIQUEEMCASA
