Question

Am nevoie urgent, va rog!​

Answer 1

Răspuns:

cam asta ar fi rezolvarea

Answer 2

Răspuns:

Explicație pas cu pas:

x/y = 3/8

x/3 = y/8 = k

x = 3k

y = 8k

___________

a)

x + y = 3k + 8k = 11k

11k/8k = 11/8

___________

b)

y - x = 8k - 3k = 5k

3k/5k = 3/5

___________

c)

3*y = 3*8k = 24k

3k/24k = 1/8

___________

d)

8*x + 3*y = 8*3k + 3*8k = 24k + 24k = 48k

9*y = 9*8k = 72k

48k/72k = 2/3