marialeyva9755 marialeyva9755
  • 14-01-2021
  • Mathematics
contestada

If x =3 then y=21 what is the value of x when y=105

Respuesta :

28lakhania
28lakhania 28lakhania
  • 14-01-2021

Answer:

15

Step-by-step explanation:

21/3=7

x=y/7

so 105/7=x

the answer is 105/7=15

Answer Link
bluegreen24
bluegreen24 bluegreen24
  • 14-01-2021

Answer: x = 15

Step-by-step explanation: Proportions.

  • 3/21 = x/105 (cross multiply)
  • 105*3 = 21x (simplify)
  • 315 = 21x (divide)
  • 15 = x

Answer Link

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