Lever...2

[nycmathguy]

1..Danny is 60lbs, Maria is 40lbs, both are balanced on seesaw that is 10ft. If the fulcrum is x ft away from Danny, what is x?

Danny.........f...........Maria

Distance from Danny to f = x.
Distance from Maria to f = 10 - x.

Equation

60x= 40(10 - x)

You say?.


2. John weighs 80 pounds and sits 4 feet from the fulcrum of a seesaw. If Sally weighs 100 pounds and sits on the other side, how far from the fulcrum must she sit to have the seesaw balance?

John........f...........Sally

Distance from John to f = 4 feet.
Distance from Sally to f = x.

Equation

80(4) = 100x

Yes?

 

[Country Boy]

Yes, both of those are correct.

 

[nycmathguy]

Very cool. Amazing. Both are correct.