swaleha2004
swaleha2004 swaleha2004
  • 23-02-2020
  • Mathematics
contestada

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Each marble bag sold by Justin's Marble Company contains 4 purple marbles for every 5 red marbles. If a bag has 20 purple marbles, how many red marbles does it contain?

Respuesta :

Harjosh
Harjosh Harjosh
  • 23-02-2020
4:5 = 20:x

Since 20/4 is 5, we know the ratio was multiplied by 5 so the bag contains 25 red marbles.
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