Answer:
−
4x−2
Step-by-step explanation:
I think that the answer is $569.8. 550 times 0.072 times 0.5 (half a year) is 19.8, then 550 + 19.8 is 569.8.
Combined work problems
job/time + job/time = job/ total time
(1/80) + (1/100) = 1/T
(10/800) + (8/800) = 1/T
18/800 = 1/T
800/18 = T
44.44 hrs = T
mathematically the answer of 130.8 divided by 6.02 times 10 is equal to the positive and exact answer of
217.2757475083056
