SOLUTION: Dr.Cortez spent 30 minutes driving from home to the Seaview hospital. this was 12 minutes less than twice the time it took him to drive home. how long did it take him to drive hom

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Question 389708: Dr.Cortez spent 30 minutes driving from home to the Seaview hospital. this was 12 minutes less than twice the time it took him to drive home. how long did it take him to drive home
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,  

I. Assigning the variable       

Let x represent the time it took to drive 'back home'

II.Writing as we Read*** 

 30min = 2x - 12min

  III.solving for x

     42min = 2x

      21min = x, the time it took to drive 'back home'



IV. CHECKING Our Answer***

  30min = 2*21min - 12min = 44min - 12min = 30min