In most countries outside the United States speed is measured in kilometers per hour (km/h) rather than miles per hour (mph). Although the exact conversion from km/h to mph is 0.57, a conversion factor of 0.6 is generally used because it is easier to remember. For the reverse conversion a factor of 1.7 is normally used. Perform the following conversions using the approximate conversion factors.
a. What is the speed in mph of an automobile on the German Autobahn traveling at 160 km/h?
b. What is the speed in km/h of a motorcycle traveling at 70 mph in the United States?
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