Q:

To balance a seesaw the distance a person is from the fulcrum is inversely proportional to his or her weight. Roger who weights 120 pounds is sitting 6 feet from the fulcrum. Ellen weights 108 pounds. How far from the fulcrum must she sit to balance the seesaw? Round to the nearest hundredth of a root

Accepted Solution

A:
Answer:5.4 feetStep-by-step explanation:Step 1 : Prepare the dataRoger's weight = 120Roger's distance from fulcrum = 6 feetEllen's weight = 108Ellen's distance from fulcrum = DStep 2 : Make an equation to find the unknownInverse proportion means that you have to cross multiply.            Weight                              Distance               120                                     6               108                                     D120 x D = 108 x 6Step 3 : Solve the equation to find the unknown120 x D = 108 x 6D = 108 x 6         120D = 5.4 feet Ellen must sit 5.4 feet far from the fulcrum to balance the seesaw.!!