Scale ratios are used to represent proportions.
The scale ratio is: 1 to 1000000
The scale ratio is given as:
Scale: 1 mm = 5 km
Express as fraction
[tex]\mathbf{Scale = \frac{1mm}{5km}}[/tex]
Express km as mm
[tex]\mathbf{Scale = \frac{1mm}{1000000mm}}[/tex]
Cancel out the units
[tex]\mathbf{Scale = \frac{1}{1000000}}[/tex]
Express as ratio
[tex]\mathbf{Scale = 1:1000000}[/tex]
Hence, the scale ratio is: 1 to 1000000
Read more about scale ratios at:
https://brainly.com/question/16192120
