Problema Solution
Mr.samoano has $3 more than Mr.parra.
Melody has $4 less than Mr.parra and Oscar has twice the amount melody has.
Find the amount of money they each have if Oscar and melody have $108 between the two of them
Answer provided by our tutors
let
s = the money Mr.Samoano has
p = the money Mr.Parra has
m = the money Melody has
o = the money Oscar has
Mr.Samoano has $3 more than Mr.Parra:
s = 3 + p
Melody has $4 less than Mr.Parra:
m = p - 4
p = m + 4
Oscar has twice the amount Melody has:
o = 2m
Oscar and Melody have $108 between the two of them:
o + m = 108
plug o = 2m into the last equation
2m + m = 108
m = 108/3
m = $36
o = 2*36
o = $72
p = m + 4
p = 36 + 4
p = $40
s = 3 + p
s = 3 + 40
s = $43
Oscar has $72.
Melody has $36.
Mr.Samoano has $43.
Mr.Parra has $40.