SOLUTION: Here is my problem Five years ago, jay was 7 years more than as half as old as fred. The product of their age is 696. Find their present age Thank you in advance!

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: Here is my problem Five years ago, jay was 7 years more than as half as old as fred. The product of their age is 696. Find their present age Thank you in advance!      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1143888: Here is my problem Five years ago, jay was 7 years more than as half as old as fred. The product of their age is 696. Find their present age
Thank you in advance!
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Five years ago, jay was 7 years more than as half as old as fred. The product of their age is 696. Find their present age
----
Wording not clear.
"...7 years more than as [sic] half as old as fred."


Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +m+ = Jay's age now
Let +p+ = Fred's age now
-------------------------------------
(1) +m+-+5+=+%281%2F2%29%2A%28+p+-+5+%29+%2B+7+
(2) +m%2Ap+=+696+
-------------------------------------
(1) +2%2A%28+m+-+5+%29+=+p+-+5+%2B+14+
(1) +2m+-+10+=+p+%2B+9+
(1) +p+=+2m+-+19+
------------------------------------
(2) +m%2A%28+2m+-+19+%29+=+696+
(2) +2m%5E2+-+19m+-+696++=+0+
+m+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+%7D%7D%0D%0A%7B%7B%7B+a+=+2+
+b+=+-19+
+c+=+-696+

+m+=+%28+19+%2B+77+%29+%2F4+
+m+=+96%2F4+
+m+=+24+
and
(1) +p+=+2m+-+19+
(1) +p+=+2%2A24+-+19+
(1) +p+=+48+-+19+
(1) +p+=+29+
-----------------------------
Jay is 24
Fred is 29
-------------------
check:
(2) +m%2Ap+=+696+
(2) +24%2A29+=+696+
(2) +696+=+696+
---------------------------
You can check (1)