solve the system
x-0.25y=11750
-0.20x + y=10000

Question

precioushunter1 precioushunter1

30-05-2015
Mathematics

Answered

solve the system
x-0.25y=11750
-0.20x + y=10000

Answer :

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Panoyin Panoyin · Answer 1 · 2015-05-30T19:03:50-04:00

x - 0.25y = 11,750 ⇒ x - 0.25y = 11,750
-0.2x + y = 10,000 ⇒ 0.05x - 0.25y = -2,500
   0.95x = 14,250
      0.95   0.95
      x = 15,000
      x - 0.25y = 11,750
   15,000 - 0.25y = 11,750
      - 15,000 - 15,000
      -0.25y = -3250
       -0.25 -0.25
      y = 13,000
         (x, y) = (15,000, 13,000)

solve the system x-0.25y=11750 -0.20x + y=10000

Answer :

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solve the system
x-0.25y=11750
-0.20x + y=10000