a, x*30=2340
x =2340:30
x =78
b, 39600:x=90
x=39600:90
x=440
1.Tìm x:
x * 30 = 2340
x = 2340 : 30
x = 78
39600 : x = 90
x = 39600 : 90
x = 440
Ai tk và kb vs tui nha!
x * 30 = 2340
x = 2340 : 30
x = 78
suy ra x = 78
39600 : x = 90
x = 39600 : 90
x = 440
suy ra x = 440
x * 30 = 2340
x = 2340 : 30
x = 78
39600 : x = 90
x = 39600 : 90
x = 440
1, Tìm x:
x * 30 = 2340
x = 2340 : 30
x = 78
39600 : x = 90
x = 39600 : 90
x = 440
a) x * 30 = 2340
x =2340:30
x =78
b) 39600: x = 90
x =39600:90
x =440