Verified Answer :

\(1km=1,000m\\1m=100cm\\therefore\\1km=1,000\cdot100cm=100,000cm\\----------------------\\\\15km=15\cdot100,000cm=1,500,000cm\\\\\boxed{1cm:15km\Rightarrow 1cm:1,500,000cm\Rightarrow1:1,500,000}\leftarrow scale\ of\ a\ map\\\\1cm\ of\ the\ map\ is\ equal\ 1,500,000cm\ of\ real\ distance\\1cm\ of\ the\ map\ is\ equal\ 15km\ of\ real\ distance\)

apologiabiology

for every one cm on the map that you measure, you count that as 15 km so if there is a mark 2.5 cm then you count that as 37.5km in real life

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