Question

Calcule:
1-
D= ?
d= 5,5 cm
E= 1:3000000

2-
d=?
D=130 km
E= 1:1000000

3-
E=?
D=120 km
d=7cm

4-
D=?
d=8,5 cm
E=1:2000000
Prove d e E

Answer 1

1-
1cm ------- 30km
5,5cm --- D km
D = 165 km

2-
1 cm ---- 10km
d cm --- 130km
10d = 130
d = 130/10
d = 13 cm

3-
1cm ----- E km
7cm ----- 120km
7E = 120
E = 120/7
E = 17,1km

E = 1:1710000

4-
1cm ------ 20km
8,5cm --- D km
D = 170km