Luis needs to run no less than 120 miles in order to go with the cross country team to a summer training camp. he has thirty days to pre-train for the camp. which inequality can be used to find how many miles luis must run each day to meet this goal?

30 days to run at least 120 miles

 120/30 = 4

let x = number of days

he needs to run at least 4 miles per day

 so x≥4  ( do any of your choices look like this?)

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.