mona360
mona360
03-09-2018
Mathematics
contestada
how do you solve this?
Respuesta :
TheBreeze
TheBreeze
03-09-2018
a) C = 40 + 30t
b) 280 = 40 + 30t
30t = 240
t = 8
The plumber worked 8 hours
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churchkeys88
churchkeys88
03-09-2018
C is equal to (30 x t) + 40
C = 30t + 40
we are given that C = 240
280=30t + 40
solve for t
t = 8 hrs
Answer Link
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