At 12:45 Jimmy left his home in Pinetrees and cycled to visit his grandmother in Oakville. On his way he stopped for 10 minutes in Rowan for a coffee and then he popped in to see his friend in Yewton. He arrived in Oakville at 16:25. Jimmy cycled at a steady speed of 24 km/h and his average speed for the whole journey, including the stops, was 18 km/h. For how long did Jimmy stop in Yewton? A 40 minutes B 45 minutes C 55 minutes D 60 minutes

the square root of 16 is 4.

4*4 = 16

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3

c) blue

lol  

why do you ask > .>