Jermey swims 10 laps in 15 minutes. How many minutes per lap is that?

1.5 minutes

Step-by-step explanation:

If he swims 10 laps in 15 minutes, then the answer can be found with the ratio 15 : 10. Simplifying the ratio, it becomes 1.5 : 1, or 1.5 minutes per 1 lap

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.