If in two years time lucy will be twice the age she was five years ago how old is she now
C Caz New member Joined Aug 23, 2013 Messages 1 Aug 23, 2013 #1 If in two years time lucy will be twice the age she was five years ago how old is she now
B Bob Brown MSEE Full Member Joined Oct 25, 2012 Messages 598 Aug 23, 2013 #2 Caz said: If in two years time lucy will be twice the age she was five years ago how old is she now Click to expand... give unknown variable names to things. good place to start is the thing you are seeking Lucy's age now = L Lucy's age in 2yrs = L+2 the age she was five years ago = L-5 twice the age she was five years ago = 2(L-5) Then write expressions for the story. in two years time lucy will be twice the age she was five years ago in two years time lucy age = twice the age she was five years ago L+2 = 2(L-5) [edit] Last edited by a moderator: Aug 23, 2013
Caz said: If in two years time lucy will be twice the age she was five years ago how old is she now Click to expand... give unknown variable names to things. good place to start is the thing you are seeking Lucy's age now = L Lucy's age in 2yrs = L+2 the age she was five years ago = L-5 twice the age she was five years ago = 2(L-5) Then write expressions for the story. in two years time lucy will be twice the age she was five years ago in two years time lucy age = twice the age she was five years ago L+2 = 2(L-5) [edit]
