Wednesday

July 30, 2014

July 30, 2014

Posted by **Maria** on Sunday, January 2, 2011 at 9:52pm.

Please help?

7) Kathy is 6 years younger than bill. 12 years ago bill was twice as old as Kathy was then. How old are they now?

- Math -
**Reiny**, Sunday, January 2, 2011 at 10:33pmlet Bill's present age be x

then Kathy's present age is x-6

12 years ago:

Bill was x-12

Kathy was x-6 - 12 or x - 18

at that time bill was twice as old as Kathy --- x-12 = 2(x-18)

x-12 = 2x - 36

-x = -24

x = 24

so now bill is 24 and Kathy is 18

- Math -
**Maria**, Monday, January 3, 2011 at 9:17pmAlright thanks I get it now (:

I guess I was just multiplying wrong.

**Related Questions**

ALGEBRA - Jennie and Bill have a combined age of 50. 16 years ago Jennie was ...

math - bill and ted combined age is 40. Eight years ago, bill was 2 years ...

Math - Help please. Jennie and Bill have a combined age of 50. 16 years ago ...

Math - Jill and Bill are two members of the Hill family. Jill is 8 years old and...

algebra - A person is 3 times as old as aonther person but in 15 years she will ...

Pre-algebra - Sara is 24 years younger than Joe. Six years ago she was half as ...

Math - 2x represents that Clyde is twice (2 times) as old as Bonnie. 6 years ...

Math - Sara is 24 years younger than Joe. Six years ago she was half as old as ...

Physics - A young woman named Kathy Kool buys a sports car that can accelerate ...

Physics - A young woman named Kathy Kool buys a sports car that can accelerate ...