Question

номер 3. плииииз! пожалуйсто!

Answer 1

x : 80 =800
800 * 80
x = 64000

2500 / x = 500
2500 / 500
x = 5

x * 40 = 1600
1600 / 40
x = 40

Answer 2

спс

Answer 3

3) x•40= 1600 x=1600:40 x=40