Question

can anyone help me with this

Answer 1

Answer:

4

20:80

1:4

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Answer 2

Answer:

25000

Step-by-step explanation:

80 cm represents 20 km

Convert both to the same units (cm):

80 cm = 80 cm

20 km = 20 x 1000m = 20000 m = 20000 x 100cm = 2000000 cm

Rewrite the representation:

80 cm represents 2000000 cm

Rewrite it in ratio:

80 : 2000000

Simplify the ratio by dividing by 80:

80÷80 : 2000000÷80

1: 25000

Therefore the scale is 1:25000 and the value of n is 25000