SOLUTION: five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1068444: five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Here is the description in the form of an equation, using j for John's age now.
j-cross%288%29=%281%2F2%29%28j%2B8%29-----mistake

should be, instead,
j-5=%281%2F2%29%28j%2B8%29





Answer by ikleyn(52810) About Me  (Show Source):
You can put this solution on YOUR website!
.
five years ago, jonh^s age was half of the age he will be in 8 years. how old is he now?
~~~~~~~~~~~~~~~~~~~~~~ 

J-5 = %281%2F2%29%2A%28J%2B8%29  --->

2J - 10 = J + 8  --->

J = 18.

Answer. John is 18 years old now.

There is a bunch of lessons on age word problems
    - Age problems and their solutions
    - A fresh formulation of a traditional age problem
    - Really intricate age word problem
    - Selected age word problems from the archive
    - OVERVIEW of lessons on age problems
in this site.

Read them and become an expert in solving age problems.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Age word problems".


The solution by "josgarithmetic" is wrong.