anonymous
  • anonymous
Translate to a system of equations and solve. Two cars leave town at the same time going in opposite directions.One car travels 50 mi/h and the other travels 55 mi/h.In how many hours will they be 420 miles apart?
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
55h + 50h = 420 105h = 420 h = 4
anonymous
  • anonymous
let in t hours it will happen . in t hours 1st car will go 50t and second will go 55t. so total distance=(55+50)t hence 105t=420 t=4hrs

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