Question

afla termeni necunoscuti

Answer 1

1) 20:ax35=700
20:a=700:35
20:a=20
a=20:20=1
2)16xa:8=32
16xa=32x8=256
a=256:16= 16
3)a:19x6=144
a:19=144:6=24
a=24x19= 456
4)a:13x9=819
a:13=819:9=91
a=91x13=1183
5)16x12:a=6
192:a=6
a=192:6=32
6)(4b+3):47=19 rest 6
4b+3=  19x47+6= 899
4b=899-3=896
b=896:4=224