Question 173740
well you got started right but it is also true that K+J=101
:where Kaylee's and Justin's age are K and J respectively
:
K=J+55....eq 1
K+J=101...eq 2
:
we have 2 equations with 2 unknowns
:
take K's value in eq 1 and plug it into eq 2
:
J+55+J=101
:
2J=46
:
{{{highlight(J=23)}}}Justin's age
:
{{{highlight(K=J+55=23+55=78)}}}Kaylee's age