Question

A rock climber is climbing up a 450 feet high
cliff. By 9:30 AM. the climber reached 90 feet
up the cliff and by 11:00 AM he has reached
210 feet up the cliff. If he climbs with a constant
speed, by what time will he reach the top of the
clifm

Answer 1

It would be 2 O'clock. Have a great day!!

Answer 2

The time required to climb 450 feet cliff by rock climber is 5.7 hours.

Given that,

A rock climber is climbing up a 450 feet high cliff. By 9:30 AM. the climber reached 90 feet up the cliff and by 11:00 AM he has reached 210 feet up the cliff. If he climbs with a constant speed, by what time will he reach the top of the cliff is to be determined.

What is speed?

Speed is defined as when an object is in motion, the distance covered by that object per unit time is called speed.

By 9:30 AM. the climber reached 90 feet.
By 11:00 AM he has reached 210 feet up the cliff.

Time difference 9:30 to 11:00  = 90 min or 3/2 hours
In 3/2 hours a rock climeber climbs = 210 feet - 90 feet = 120 feet

Speed = distance / time
           =  120 / 3/2
           = 80 feets per hour

Time required to climb 450 feet.
Time = distance / speed
Time = 450 / 80
Time = 5.7 hour (approx).

Thus, the time required to climb 450 feet cliff by rock climber is 5.7 hours.

Learn more about speed here:
https://brainly.com/question/7359669

#SPJ2