MATHMATICGENIUS MATHMATICGENIUS
  • 13-04-2016
  • Mathematics
contestada

david spent 2/5 of his money on a storybook. The storybook cost $20. How much money did he have at first

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tyska67
tyska67 tyska67
  • 13-04-2016
50 dallors hope this help

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GeneralKnowledge GeneralKnowledge
  • 13-04-2016
If the storybook cost $20, and it was also 2/5 of his money, then 2/5 of his money is $20. In other words:
2x/5 =20.

Multiplying both sides by 5, we get:
2x = 100.

If we divide both sides by 2, then we're left with:
x = 50.

David had $50 at first.
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