contestada

mr. Smith has twice as much money as mr. hairy the average amount of money they have is $489 how much money does mr. Smith have

Respuesta :

twvogels
S=2H
(S+H)/2=489
(2H+H)/2=489
3H=978
H=326
S=652

Mr. Smith has $652
Mr. Hairy has $326
let the amounts be 
 Mr Hairy = y
 Mr Smith = 2 y

( 2 y + y ) /2 = 489
  3/2 y = 489
     y = 326

  Amount by Mr smith
     2 × 326 = 652


Answer = 652 Dollars 

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