vickimyrick1982 vickimyrick1982
  • 16-08-2020
  • Mathematics
contestada

Find the missing number in this proportion 10/15=?/21

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 16-08-2020

Answer:

x = 14

Step-by-step explanation:

Using cross products

10          x

----- = --------------

15             21

10*21 = 15x

210 = 15x

Divide each side by 15

210/15 =x

14 =x

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