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There are red and blue files in a box. The ratio of red to blue tiles is 3:5. There are 12 more blue tiles than red tiles in the box. How many red tiles are in the box? There are red and blue files in a box . The ratio of red to blue tiles is 3 : 5 . There are 12 more blue tiles than red tiles in the box . How many red tiles are in the box ?​

Respuesta :

adioabiola

The number of red tiles in the box given the chance ratio of red to blue tiles is 18

Ratio

  • Number of red tiles = x
  • Number of blue tiles = 12 + x
  • Total tiles = x + 12 + x

= 12 + 2x

  • Ratio of red = 3
  • Ratio of blue = 5
  • Total ratio = 3 + 5 = 8

Number of red tiles = 3 / 8 × 12+2x

x = 3(12 + 2x) / 8

x = (36 + 6x) / 8

8x = 36 + 6x

8x - 6x = 36

2x = 36

x = 36/2

x = 18 tiles

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