Average speed of car 1 = 35 mph. average speed of car 2 = 55 mph. time elapsed between start of car 1 and start of car 2 = 18 minutes. how long before car 2 overtakes car 1? hour. 0.33 0.53 0.43

0.53

Step-by-step explanation:

Given that two cars are going in the same direction.

I car started 18 minutes before.

So initially I car would be distance travelled 18 minutes ahead of II car which is yet to start

Since speed is 35 miles per hour i.e. 35(60) miles per minute

in 18 minutes distance travelled by I car = 35(18/60) = 10.5 miles

The relative speed = difference of speeds = 55-35 = 20 mph

TO overtake car I time taken

= distance ahead by I car/relative speed

=

In hours this equals = 0.53

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.

126 maybe. sorry