# River

Calculate how many promiles river Dunaj average falls, if on section long 957 km flowing water from 1454 m AMSL to 101 m AMSL.

Result

p =  1.41

#### Solution:

$h_{ 1 } = 1454-101 = 1353 \ m \ \\ h_{ 2 } = 957 \ km = 957 \cdot \ 1000 \ m = 957000 \ m \ \\ \ \\ s = \dfrac{ h_{ 1 } }{ h_{ 2 } } = \dfrac{ 1353 }{ 957000 } = \dfrac{ 41 }{ 29000 } \doteq 0.0014 \ \\ \ \\ p = 1000 \cdot \ s = 1000 \cdot \ 0.0014 = \dfrac{ 41 }{ 29 } \doteq 1.4138 = 1.41 \ ‰$

Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! #### Following knowledge from mathematics are needed to solve this word math problem:

Need help calculate sum, simplify or multiply fractions? Try our fraction calculator. Our percentage calculator will help you quickly calculate various typical tasks with percentages. Our permille calculator will help you quickly calculate various typical tasks with permilles. Do you want to convert length units? See also our right triangle calculator. Try conversion angle units angle degrees, minutes, seconds, radians, grads.

## Next similar math problems:

1. Sun rays If the sun's rays are at an angle 60° then famous Great Pyramid of Egypt (which is now high 137.3 meters) has 79.3 m long shadow. Calculate current height of neighboring chefren pyramid whose shadow is measured at the same time 78.8 m and the current hei
2. Cuboid diagonal Calculate the volume and surface area of the cuboid ABCDEFGH, which sides abc has dimensions in the ratio of 9:3:8 and if you know that the wall diagonal AC is 86 cm and angle between AC and the body diagonal AG is 25 degrees.
3. Climb in percentage The height difference between points A and B is 475 m. Calculate the percentage of route climbing if the horizontal distance places A, B is 7.4 km.
4. Gear wheels Two gear wheels, which fit together, have the number of teeth z1=58 and z2=149. Calculate the speed of the first wheel, if the second wheel rotates 1232 revolutions per minute.
5. Triangle angles The angles α, β, γ in triangle ABC are in the ratio 6:2:6. Calculate size of angles. Average climb of the road is given by ratio 1:15. By what angle road average climb?
7. Arc Circle arc corresponding to angle is 32° is 28 dm long. What is the length of the entire circle?
8. Observer The observer sees straight fence 100 m long in 30° view angle. From one end of the fence is 153 m. How far is it from the another end of the fence?
9. Mast Mast has 17 m long shadow on a slope rising from the mast foot in the direction of the shadow angle at angle 9.3°. Determine the height of the mast, if the sun above the horizon is at angle 44°30'.
10. Isosceles triangle What are the angles of an isosceles triangle ABC if its base is long a=5 m and has an arm b=4 m.
11. Clock What distance will pass end of 8 cm long hour hand for 15 minutes?
12. Arc The length of the circle is 41 amd arc length of the circle 9. What is the magnitude of the angle of this arc?
13. Stairway What angle rising stairway if step height in 17 cm and width 27 cm?
14. Trapezoid - diagonal Trapezoid has a length of diagonal AC corssed with diagonal BD in the ratio 2:1. The triangle created by points A, cross point of diagonals S and point D has area 164 cm2. What is the area of the trapezoid?
15. Minute angle Determine size of angle, which takes minute hand for 75 minutes.
16. Circumferential angle Vertices of the triangle ΔABC lies on circle and divided it into arcs in the ratio 2:2:9. Determine the size of the angles of the triangle ΔABC.
17. Angles ratio In a triangle ABC true relationship c is less than b and b is less than a. Internal angles of the triangle are in the ratio 5:4:9. The size of the internal angle beta is: