1/3 + 1/4 = 1/ Total Time Working Together
4/12 + 3/12 = 1 / T
7 /12 = 1 / T [ remember that we can write ]
12 / 7 = T / 1
12/ 7 = T
T = 12/7 hrs ≈ 1.7 hrs = 1 + .7(60) = 1 hr 42 min
Original Answer: https://web2.0calc.com/questions/4-sketch-a-graph-of-a-polynomial-that-would-have-help
Credit To: CPhill
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