Question

Helppppppp
Ajutorrrr
DAU COROANĂ
Urgentttttttt
Plsssssssss ​

Answer 1

Explicație pas cu pas:

14:100×50= 14:2=7

5/100 •x=18

1/20•x=18

x=18•20=360

Answer 2

Explicație pas cu pas:

$14\% \cdot 50 = \frac{14}{100} \cdot 50 = 7$

$5\% \cdot x = 18 \iff \frac{5}{100} \cdot x = 18 \\ x = \frac{100 \cdot 18}{5} \implies x = 360$

$70 - 70 \times x\% = 63 \\ 70 \times \frac{x}{100} = 7 \\ x = \frac{100 \times 7}{70} \implies x = 10 \\ p\% = 10\%$