Waiting

period.

Jeff, a local traffic engineer, has designed a new pedestrian footbridge that is capable of handling the current traffic rate of

200 pedestrians daily. Once the traffic rate reaches 1,500 pedestrians daily, however, the bridge will require a new bracing system. Jeff has estimated that traffic will increase annually at 3%.

How long will the current bridge system work before a new bracing system is required? What if the annual traffic rate increases at 8%

annually? At what traffic increase rate will the current system last only 10 years?

If the traffic rate increases at 3% annually, how long will the present bridge system work before a new bracing system is required?

enter your response here

years (Round to two decimal places.)

Part 2

If the traffic rate increases at 8% annually, how long will the present bridge system work before a new bracing system is required?

Enter your response here years(Round to two decimal places.)

Part 3

At what traffic increase rate will the current system last only 10 years?