Question 397455
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Hi
Let x represent the minutes it takes together to shovel the driveway
question states***per minute being the equalizer
  1/50 + 1/20 = 1/x  |Multiplying thru with 100x so as all denominators= 1
  2x + 5x = 100
     7x = 100
      x = 100/7 = 14.2857 min