chloemafracis222
chloemafracis222 chloemafracis222
  • 17-06-2019
  • Mathematics
contestada

The sum of two numbers is 28. The first number, x, is three times the second number, y. Which system of equations can be used to find the two numbers?

Respuesta :

Аноним Аноним
  • 17-06-2019

Answer:

The ratio is 1:3.

The second number,y, is 7 and the first number, x, is 21.

Answer Link
mhoang537
mhoang537 mhoang537
  • 17-06-2019
First x+y=28 (1)
Second x=3y


(1) => 3y+y=28 => 4y=28 => y=7 and x=3y =3*7=21
Answer Link

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