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The ratio of black bags to blue bags is 5 to 3.
If there are a total of 15 blue bags, then how
many black bags are there?

Respuesta :

adioabiola

The number of black bags there given the ratio black to blue as 5 to 3 is 25

Ratio

  • Black bags = 5
  • Blue bags = 3
  • Total blue bags = 15
  • Total black bags = x

Black : Blue = 5 : 3

Total blue : Total black = x : 15

Equate the ratio

5 : 3 = x : 15

5/3 = x / 15

  • cross product

5 × 15 = 3 × x

75 = 3x

  • divide both sides by 3

x = 75/3

x = 25 black bags

Therefore, the number of black bags there given the ratio black to blue as 5 to 3 is 25

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