Respuesta :

Answer:

1:20

Step-by-step explanation:

well a scale is comparing one thing to another so if 1cm on a map is equal to 20 km then the scale is cm to km

1 cm to 20 km

1:20

ayu350

Answer:

0.00001:20

Step-by-step explanation:

First of all, we have to realize that we are converting the scale in real life. That means, in kilometers.

So, we know that there are 100,000 cm in 1 kilometer, therefore we can know that 1 cm will equal to 0.00001 kilometers. (I divided by 1 by 100,000. Move the decimal point from 1. by six places.)

There you have the answer: 0.00001:20

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