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Kirsty needs to hire a plumber to fix her house. The plumber charges \(242_5\) dollars for every hour of labor and \(367_8\) dollars for equipment. If the plumber works for \(3.5_{10}\) hours, how many dollars (in base ten) will Kirsty owe the plumber?

 Feb 11, 2021
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242 base 5 =     2 x 25  + 4 x 5   + 2 x 1 = 72   per hour     72 x 3.5 = 252 dollars

PLUS   367 base 8 = 64 x 3   +  6 x 8  + 7 = 247

 

247 + 252 =  $                  

 Feb 11, 2021

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