Posted by **Jessi** on Sunday, December 5, 2010 at 8:51pm.

Joey weighs 77 lb and sits on a seesaw at a distance of 30 inches from the fulcrum. Jenny

weighs 67 lb and sits on the opposite side of the seesaw at a distance of 48 inches from the

fulcrum. Mikey weighs 30 lb and wants to play but doesnâ€™t know where to sit in order to make

the seesaw exactly balance. On whose side and how far away from the fulcrum should he sit?

- Kinesiology -
**MathMate**, Sunday, December 5, 2010 at 10:01pm
Take moments about the fulcrum, and assume Mikey sits on Joey's side. If the distance turns out negative, go to the other side.

=====J=======M=======Δ=======Jen======

Take moments about the fulcrum, clockwise=positive

67*48 - (77*30 + 30*x ) = 0

Solve for x

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