Math practice for 13 year olds - page 338 of 353
Number of problems found: 7058
- Inheritance
After death, the father (♱ 54) remained the mother (his wife) and 5 children. Inheritance by law is that the first mother will automatically get half of the property and the other half inherited by heirs, the mother and her 5 children by the same share. C - Shelf
How many ways are there to arrange 6 books on a shelf? - Area codes
How many 6 digit area codes are possible if the first number can't be zero? - Kids
How many different ways can sit 8 boys and 3 girls in line if girls want to sit on the edge?
- Thales
Calculate the length of the Thales' circle described to the right triangle with hypotenuse 44.2 cm. - Homework
Together, the mother and Kate weigh 21.9 kg more than the father. The father weighs 8.1 kg more than the mother. The father weighs 40.2 kg more than Kate. Determine the weights of the father, mother, and Kate. - Count of roots
How many solutions have equation x * y = 7757 with two unknowns on the set of natural numbers? - Base
Compute the base of an isosceles triangle, with the arm a=20 cm and a height above the base h=10 cm. - Homework - jumps
Sasha jumped 131 cm Peter 4 cm more than Jirka. Jirka 6 cm less than Misha. Misha 7 cm less than Filip, and Filip is half as much as Sasha and Petr together. How far does each jump?
- Road embankment
Road embankment has a cross-section shape of an isosceles trapezoid with bases 5 m and 7 m and 2 m long leg. How many cubic meters of soil is in an embankment length of 1474 meters? - 100 %
How much is 100% if 82 % is 77? - Percentages
Expressed as a percentage: - IS trapezoid
Isosceles trapezoid arm measured 35 cm. Height is 30 cm, and the middle segment is 65 cm. Find the length of its bases. - Bridge
The bridge arc has a span of 159 m and a height of 14 m. Calculate the radius of the circle arc of this bridge.
- Bakery
How heavy must prepare bread at a bakery if a bread loses 18% of water during baking and after baking must have 1.7 kg? (Calculate to the nearest gram) - Tank
In the middle of a cylindrical tank with a bottom diameter of 479 cm, there is a standing rod 34 cm above the water surface. If we bank the rod, its end reaches the water's surface just by the tank wall. How deep is the tank? - Railways
Railways climb 2.8 ‰. Calculate the height difference between two points on the railway distant 5997 meters. - Tereza
The cube has an area of base 144 mm². Calculate the edge length, volume, and area of its surface. - Pool
Mr. Peter builds a pool in the garden in the shape of a four-sided prism with a rhombus base. The base edge length is 8 m, and the distance between the opposite walls of the pool is 7 m. The estimated depth is 144 cm. How many hectoliters of water does Mr
Solve pure quadratic equation -7x² +4 = 0.Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.
