Starting at home Luis travels uphill to the gift store for 50 minutes at just 6 mph he then traveled back home along the same path downhill at a speed of 12 mph. What is his average speed for the entire trip from home to the gift store and back?

the answer is 11.2 (i know i’m late)

a

step-by-step explanation:

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.

lol   i know im kinda tired too