Geometry homework help???

Pooters and Dooters were walking across a bridge one day, minding their own business. They knew that a train was due to come across that bridge soon, but they thought they could make it. It was a nice sunny day, and there was a great view from the bridge, so they walked very slowly, enjoying the view and savoring the warmth of the spring day.

They were one-third of the way across the bridge, when the sound of a train whistle brought them instantly back to reality. Looking back over their shoulders, they saw a huge locomotive pulling tons of boxcars coming directly at them at 24 miles per hour! Using all their powers of mathematical reasoning, Pooters and Dooters immediately figured that they could run directly ahead and get to the far edge of the bridge at the exact same instant as the train. But they also knew that they could run back toward the train and get to the near end of the bridge just as the train got there. Basically, they knew they were dead meat.

How fast do Pooters and Dooters run?

Respuesta :

The explorer's running velocity will be 1/3 the velocity of the train, 45/3 = 15. From those issue statement, the train will a chance to be at the begin of the span The point when those voyagers have run 1/3 of the period of the span. In they run of the much end of the bridge, they will bring run 1/3 of the length of the span when those prepare achieves the close to wind. Beginning starting with those 1/3 point, they will make toward those 2/3 perspective At those prepare achieves those span. The prepare will travel the full period of the span in the the long haul it takes those voyagers to run those remaining 1/3. Accordingly the train must travel toward three times the running speed of the voyager. Train = 45 mph, voyagers = 15 mph. The speed of P&D = 15 mph