Question

Dacă 5/7=x/21,atunci x=A)15 B)1/15 C)5/7 D)7/5 plzzz repede urrggeennnntttttt​

Answer 1

Răspuns:

x = 15

Explicație pas cu pas:

$\\ \it \frac{5}{7} = \frac{x}{21} \\ \\ \it x = \frac{21 \times 5}{7} \\ \\ \it x = \frac{105}{7} \\ \\ \it \boxed{\bold{ x = 15}}$

#PennyWise #Matematica

Answer 2

5/7 = x/21

x=5×21:7=105:7=15

x=15