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a) What percentage of city bus routes are less than 15 mi?
56.20820167 ≈ 56.2%
b)What percentage of city bus routes are greater than 20 mi?
4.282995170 ≈ 4.3 %
c) What percentage of city bus routes are less than 10 mi?
<span>7.98 ≈ 7.98 %</span>
Х - 15 = 32
х = 32 + 15
x = 47 (answer)
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47 - 15 = 32
32 = 32
х - 7.2 = 23,1
х = 23,1 + 7.2
х = 30,3 (answer)
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30,3 - 7,2 = 23,1
23,1 = 23,1