There is an elevator in a 450-foot-tall building with 30 floors. Starting from the 20th floor, the elevator descends steadily to the bottom floor, passing the 15th floor half a minute after starting its descent. The following graphic summarizes this information. Based on the graph, determine how fast the elevator travels and how long it would take to go from the 20th floor to the bottom of the building.

Question

There is an elevator in a 450-foot-tall building with 30 floors.  Starting from the 20th floor, the elevator descends steadily to the bottom floor, passing the 15th floor half a minute after starting its descent.  The following graphic summarizes this information.  Based on the graph, determine how fast the elevator travels and how long it would take to go from the 20th floor to the bottom of the building.

supie · Answer

1 flower is $$450/30=15ft$$ It decreses at a rate of -5floors/5min which = $$-5*15/.5=-150ft/min$$
So, $$h=20*15-150t$$$$h=300-150t$$$$300=150t
$$$$t=2$$

Jfkdn · Answer

N I need to know how to solve it in the graph

darkknight · Answer

Yes but we can't see the graph, u didn't post it