SOLUTION: A child weighing 70 lbs sits 5 ft. from the fulcrum on a teeter totter, How far should the other child who weighs 85 lbs sit from the fulcrum in order to keep the teeter board bala

Question 248548: A child weighing 70 lbs sits 5 ft. from the fulcrum on a teeter totter, How far should the other child who weighs 85 lbs sit from the fulcrum in order to keep the teeter board balanced? Which concept would you use, from the ones you learned this week, to solve this problem? Discuss different approaches to solve it.
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
You multiply the weight by the distance from the fulcrum.
70 lb * 5 ft = 350 ft-lb
.
On the other end, the person is 85 lb.
.
We want them to balance, so...
.
85 lb * x ft = 350 ft-lb
.
85x = 350
.
Divide both sides by 85
.
x = 4.1176471 ft
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