Question

Va rog mult dau coroana ​

Answer 1

Răspuns:

1. xt=yz

xt=4

5yz=4×5=20

2. yz=2×5

yz=10

3. x/y=z/t

xt=yz

9+xt/yz=9+xt/xt=9+1=10

Answer 2

Explicație pas cu pas:

1)

$\frac{x}{y} = \frac{z}{t} \implies xt = yz \\ yz = 4 \implies 5yz = 20$

2)

$\frac{2}{y} = \frac{z}{5} \implies yz = 10$

3)

$\frac{x}{y} = \frac{z}{t} \implies \frac{xt}{yz} = 1 \\ 9 + \frac{xt}{yz} = 9 + 1 = 10$