Posted by Barrie on Sunday, July 14, 2013 at 11:31am.
A. Lisa is 15 years old and her father is 40. How many years ago was the father six times as old as Lisa?
B. Joel is one third the age of Bob. In 7 years the combined ages of the boys will be 58. How old is each boy now?

math  PsyDAG, Sunday, July 14, 2013 at 1:24pm
A. Let x = years ago
6(15x) = 40x
Solve for x.
B. B = 3J
(B+7) +( J+7) = 68
Substitute 3J for B in second equation and solve for J. Insert that value into the first equation and solve for B. Check by inserting both values into the second equation.

math  Raj, Sunday, September 25, 2016 at 12:33am
A. 10 yearsc
B. 11 and 33
Answer This Question
Related Questions
 math  1. Lisa is 15 years old and her father is 40. How many years ago was the ...
 math  A. A woman was 30 years old when her daughter was born.Her age is now 6 ...
 algebra  The combined age of a father and his two sons is 50 years. Four years ...
 Jefferson  lisa is 6 years older than Tom. Their father's age is twice the sum ...
 Mathematics  Two years hence,a father will be six times as old as his son.Three...
 algebra  a boy is b years old and his father is 6 times as old as him. find the...
 algebra  Im feeling like an old parent. Please help. Charles is onethird as ...
 MATH  1. A father is three times as old as his son. Five years ago the sum of ...
 maths  A man's age is 4 times the combined age of a two sons. One of whom is 3 ...
 maths  ali's father was five times as old as Ali 7 1/2 years ago.After 7 1/2 ...
More Related Questions