Question

Calculati x € N* din realitățile:
A)x+12,5<16,4
B)x•3.8<10,5
C)x-2,6<1,07
D)14.7-x>11.3
E)x•3.4<15,7
F)7,2+x<9.5

Answer 1

A) x+12,5<16,4=>x<16,4-12-5=> x<3,9=>x€{3,2,1,0}
B) x×3,8<10,5=>x<10,5÷3,8=>x<2,76315794=>x€{2,1,0}
C)x-2,6<1,07=>x>1,07+2,6=>x>3,67=>x€{4,5,6,7,8,...}
D)14,7-x>11,3=>x<14,7-11,3=>x<3,4=>x€{3,2,1,0}
E)x×3,4<15,7=>x<15,7÷3,4=>x<4,61764705=>x€{4,3,2,1,0}
F)7,2+x<9,5=>x<9,5-7,2=>x<2,3=>x€{2,1,0}