Question

problema 5 va rog !!dau coroana​

Answer 1

Notam cu x distana.

4:6 din x = 20

x = 20 : 4:6

x = 30 km

Notam d = distanta ramasa

d = 30 (distanta totala) - 20 (distanta parcursa) = 10km

50/100 * d = 50/100 * 10 = 1/2 * 10 = 5km.

Answer 2

Notam cu x distanta

4/6 din x = 20  

4/6×x = 20

4x = 20×6

4x = 120

x = 30 km

d = 30 km - 20 km = 10 km

50/100 din d = 50/100 × 10 = 1/2 × 10 = 5 km