Question 377656
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Hi
Let x represent time in minutes it takes to fill the tank together
Per minute is the Equalizer
1/45 + 1/55 = 1/x  Mulitplying each term by 45*55x so as all denominators = 1
55x + 45x = 45*55
100x = 45*55
x = 45*55/100
x = 27.75 min, time in minutes it takes to fill the tank together