Question

b = 35 + 4,5-0,6 и а= 20;
b = 140 + 1,5-0,8 и а= 25;​

Answer 1

1) b=35+4,5×0,6

b=35+2,7

b=37,7

37,7 - 100%

x - 20%

x = 37,7×20%/100%=7,54

2)b=140 + 1,5-0,8

b=141,5-0,8

b=140,7

140,7 - 100%

x - 25%

x= 140,7×25%/100%=35,175