Arobot moving forward at a constant speed takes 2.5 hours to travel 1 kilometer. moving forward at this same constant speed, it takes the robot 90 seconds to travel the length of a particular hallway. how many meters long is the hallway?

The length of the hallway is 10 m.

Step-by-step explanation:

Given:

Time taken to cover 1 km = 2.5 hours

Distance covered in 2.5 hours = 1 km

Therefore, speed of robot =

Now, speed is constant.

Now, time taken to cover the length of hallway = 90 s

Speed of the robot = 0.4 km/h

Converting 0.4 km/h to m/s, we multiply by the factor . This gives,

Now, distance of the hallway is equal to the product of speed and time. So,

Distance of hallway = Speed Time

Distance of hallway =

Therefore, the length of the hallway is 10 m.

i think the amount would be $140.62

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c