Posted by **roy** on Monday, January 28, 2013 at 9:53pm.

Joy is 20 years older than Bob. Three years ago, Joy was 5 times as old as Bob. How old are they now?

- high shoool algebra -
**Reiny**, Monday, January 28, 2013 at 10:12pm
ages now:

Bob ---- x

Joy -----x+20

ages 3 years ago:

Bob --- x-3

Joy ---- x+20 - 3 = x+17

at that time, Joy was 5 times as old as Bob

---> x+17 = 5(x-3)

x+17 = 5x - 15

-4x = - 32

x = 33/4 = 8

Bob is now 8 years, Joy is 28

Three years ago, Bob was 5 ,and Joy was 25

Was she 5 times as old as Bob, YES!!

- high shoool algebra -
**i**, Tuesday, January 29, 2013 at 5:58am
67087-

## Answer This Question

## Related Questions

- math - A. A woman was 30 years old when her daughter was born.Her age is now 6 ...
- math - A. Brad is 12 years older than Sam . If Brad were 8 years older than he ...
- math - A. John is now 10 years older than Marcus. Three times John's age 5 years...
- math - 1. Lisa is 15 years old and her father is 40. How many years ago was the ...
- algebra - A person is 3 times as old as aonther person but in 15 years she will ...
- math - A. Lisa is 15 years old and her father is 40. How many years ago was the ...
- Math - Drew is twice as old as his sister joy.The quotient of their ages five ...
- Algebra - Rosa is 14 years older than her sister amy. Three years ago, she was ...
- algebra - Ten years from now Tim will be twice as old as Jane was when mary was ...
- math - Bob's age is now 3 times of Tom's age. Twelve years from now, tom will be...

More Related Questions