Question

18 Află numărul necunoscut. 358 x 2 x a = 2 148 bx (864:8 + 609:3-11) = 16 200 4 x (61 208 - 60 896): c = 3 450 d + 480: (354:59) = 98 e: 30 + 150 = 38 000:200​

Answer 1

Explicație pas cu pas:

358×2×a=2148

716×a=2148

a=2148:716

a=3

b×(108+203-11)=16200

b×300=16200

b=16200:300

b=54

4×(61 208-60 896):c=3

4×312:c=3

1248:c=3

c=1248:3

c=416

450:d+480:6=98

450:d+80=98

450:d=98-80=18

d=450:18

d=25

e:30+150=190

e:30=190-150=40

e=40×30

e=1200

Succes!