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Heather, David, and Kevin have a total of $90 in their wallets. David has $6 less than Heather. Kevin has 2 times what David has. How much do the have in their wallets

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sqdancefan

Answer:

  • Heather, $27
  • David, $21
  • Kevin, $42

Step-by-step explanation:

Let d represent the amount David has. Then Heather has d+6 and Kevin has 2d. The sum of these amounts is ...

  d +(d+6) +2d = 90

  4d = 84

  d = 21 . . . . . .  David's amount

  d+6 = 27 . . .  Heather's amount

  2d = 42  . . .  Kevin's amount

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