0.4
Пошаговое объяснение:
(3/4+1/20)•1/2 = (0.75 +0.05) * 0.5 = 0.8 *0.5 = 0.4
либо
(3/4+1/20)•1/2 = (75/100 + 5/100)* 5/10 = 8/10 *5/10 = 4/10 = 2/5
0.4
Пошаговое объяснение:
(3/4+1/20)•1/2 = (0.75 +0.05) * 0.5 = 0.8 *0.5 = 0.4
либо
(3/4+1/20)•1/2 = (75/100 + 5/100)* 5/10 = 8/10 *5/10 = 4/10 = 2/5
4/5•1/2=4/10