anonymous
  • anonymous
help ;-; I hate school
Mathematics
  • Stacey Warren - Expert brainly.com
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chestercat
  • chestercat
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anonymous
  • anonymous
The distances (y), in miles, of two cars from their starting points at certain times (x), in hours, are shown by the equations below: Car A: y = 52x + 70 Car B: y = 54x + 56 After how many hours will the two cars be at the same distance from their starting point and what will that distance be? 6 hours, 420 miles 6 hours, 434 miles 7 hours, 420 miles 7 hours, 434 miles
hybrik
  • hybrik
Set them equal to them
hybrik
  • hybrik
self

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hybrik
  • hybrik
54x + 56 = 52x + 70
hybrik
  • hybrik
then simplify, 2x=14
hybrik
  • hybrik
x=7
anonymous
  • anonymous
I think it is 7 hours, 420 miles but im not sure...
hybrik
  • hybrik
Plug in 7 into the equation

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