3 With 72 million bicycles, correct to the
1 answer:
Answer:
181 million km
Step-by-step explanation:
"Correct to the nearest unit" means the actual value might be 1/2 unit larger (or smaller) than the reported value.
The upper bound would be the product of the maximum number of bicycles and the maximum distance each travels:
(72.5 · 10^6 bicycles)(2.5 km/bicycle) = 181.25 · 10^6 km
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Since the given numbers are good to 2 significant figures (or so), we might reasonably put the upper bound as 180·10^6 km.
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