because there are 5 tires available and only 4 tires are used at a time each tire travels 4/5 of the distance
lets use 1000 km for example:
1000/5 = 200 km
The first 200 km we use tires 1, 2, 3, 4 The second 200 km we use tires 1, 2, 3, 5 The third 200 km we use tires 1, 2, 5, 4 The fourth 200 km we use tires 1, 5, 3, 4 The fifth 200 km we use tires 5, 2, 3, 4
breaking it into 5ths you can see each tire is used 4/5 of the time
There is a 4/52 chance of getting a king, because there are 52 cards in a deck, and 4 kings in each. And there is a 2/10 (1/5) chance of getting an i, because there are 2 i's in the word "incredible", and 10 letters (so simplifying that, you would get 1/5).
If by "long leg lengths" you mean the hypotenuse then the area is 116 sq. units. If you mean the bases of the triangles then the area is 170 sq. units.
If the length of 12 is the hypotenuse, we first must find the base of the triangles using the Pythagorean theorem:
10² + b² = 12²
100 + b² = 144
b² = 44
b = √44 = 6.6
This means we have two triangles and a rectangle. The area of the rectangle is 5(10) = 50 sq. units. The area of each triangle is 1/2(6.6)(10) = 33. Adding all 3 together we have:
50+33+33 = 116 sq. units.
If the 12 is the base, then we have the rectangle with the area of 5(10) = 50 and two triangles each with an area of 1/2(12)(10) = 60:
