Question 1196552
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Hi 
Let 'x' represent amount invested at 15%
I. .07(50000-x) + .15x = $6000
   .08x = 6000-.07*50,000
      x = 2500/.08
      x =$31,250  invested at 15%, $18,750 at 7%
II.
Set up the same:
Let 'x' represent amount invested at 15%
 .07(50000-x) + .15x = $7000
  .08x = 7000 - 3500
     x = 3500/.08
     x = $43,750 at 15%,  $6,250 at 7%

Wish You the Best in your Studies.
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