Bob climbed down a ladder from his roof, while roy climbed up another ladder next to him. each ladder had 30 rungs(steps). their friend jill recorded the following information about bob and roy: bob went down 2 rungs every second. roy went up 1 rung every second. at some point, bob and roy were at the same height. which rung were they on?

They were on 10th rung.

Step-by-step explanation:

Given,

The total rung( steps ) in the ladder = 30,

∵ Speed of Bob to coming down = 2 rung per second,

So, the height of bob after x seconds = 30 - 2x

Now, speed of Roy to climb the ladder = 1 rung per sec,

So, the height of Roy after x seconds = 1 × x = x

If x = 30 - 2x

x + 2x = 30

3x = 30

Hence, they were be at 10th rung.

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

happy to

i think the length is 12 and the width is 17