Jabal and micheal are walking to school and agree to leave their homes at the same time. jabal leaves his house walking 2 meters per second. micheal leaves his house walking 2.5 meters per second. jabal's house is 100 meters closer to school than micheal's house. after how long are the boys walking together?

200 seconds or 3 minutes and 20 seconds

Step-by-step explanation:

Jabal from Micheal's house

y=100+2x

Micheal to his house

y=2.5x

100+2x=2.5x

100=0.5x

x=200

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.