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The formula M = 5/8 K gives the approximate distance in miles as a function of kilometers. Use the inverse to express 25 miles in kilometers.​

User Yarik Dot
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M = 5/8 K
8/5 M = 8/5 x 5/8 K = K
K = 8/5 x 25 = 40 km
User Gandirham
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