SOLUTION: if lisa's age six years ago is subtracted from her age six years from now, the result will be half a year more than one half her present age. how old is lisa now?
Algebra ->
Sequences-and-series
-> SOLUTION: if lisa's age six years ago is subtracted from her age six years from now, the result will be half a year more than one half her present age. how old is lisa now?
Log On
Question 773299: if lisa's age six years ago is subtracted from her age six years from now, the result will be half a year more than one half her present age. how old is lisa now? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! if Lisa's age six years ago is subtracted from her age six years from now,
the result will be half a year more than one half her present age.
how old is Lisa now?
:
Let x = L's present age
:
Write an equation for what it says.
:
(x+6) - (x-6) = .5x + .5
x + 6 -x + 6 = .5x + .5
12 = .5x + .5
12 - .5 = .5x
11.5 = .5x
mult both sides by 2
23 = x; Lisa is 23
