Question

ft urgenttt, macar una !! ​

Answer 1

Răspuns:

a)

$\frac{20}{100} \times y = 50$

20y/100 = 50

20y = 50 × 100 = 5 000

ay = 5 000/ 20 = 250

b)

$\frac{35}{100} \times y = 4200$

35y/100 = 4 200

35y = 4 200 × 100 = 420 000

y = 420 000/35 = 12 000

c)

$\frac{18}{100} \times y = 36$

18y/100 = 36

18y = 36 × 100 = 3 600

y = 3 600 / 18 = 200

d)

$\frac{0.2}{100} \times y = 1$

0,2y/100 = 1

0,2 y = 1 × 100 = 100

y = 100 / 0,2 = 500