Final answer:
To convert 40 km to miles, multiply 40 km by the conversion factor of 1 mile = 1.61 km. The answer is approximately 24.85 miles.
Step-by-step explanation:
To convert 40 km to miles, we can use the conversion factor of 1 mile = 1.61 km. We can set up a proportion using these conversion factors:
40 km ÷ 1.61 km/mile = x miles
Cross-multiplying, we get:
40 km * 1 mile = 1.61 km * x miles
x = (40 km * 1 mile) ÷ 1.61 km
Simplifying the equation, we find that 40 km is approximately equal to 24.85 miles.