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Mathematics, 05.02.2020 12:58 skgoldsmith

Bill started west on road u. s. 50, riding a bicycle at an average rate of 9 mph. four hours later charles started after bill on a motor cycle and overtook him in 2 hours. what was charles' rate?

which equation could be used to solve for charles' rate if it is represented by x?
a.2x = 36
b.2x = 54
c.6x = 54

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