Math practice for 13 year olds - page 225 of 424
Number of problems found: 8475
- Possible combinations - word
How many ways can the letters F, A, I, and R be arranged? - Palka 14933
The bat and the ball together cost €110. A bat costs 100 euros more than a ball. How much is the ball? - Dimensions 14883
Žofka decided to wallpaper one side of her room. How long does he have to go to school if the dimensions are 3 m and 2.4 m? - Equilateral 14873
There is a circle with a radius of 2.5 cm and point A, which lies on it. Write an equilateral triangle ABC in the circle. - Two bodies
The rectangle with dimensions 8 cm and 4 cm is rotated 360º first around the longer side to form the first body. Then, we similarly rotate the rectangle around the shorter side b to form a second body. Find the ratio of surfaces of the first and second bo - Cross five
The figure in the picture is composed of the same squares and has an area of 45cm². What is its perimeter? - Two accounts
A banker divided $5000 between 2 accounts, one paying 10% annual interest and the second paying 8% annual interest. Express the amount invested in the 10% account in terms of the amount invested in the 8% account. - Temperature 14773
The earth's temperature rises to a depth of about 1 °C at 33 meters. What is the approximate temperature at the bottom of a mine 1090m deep? If at a depth of 100m, the temperature is 11 °C? - Calculate 14733
Square has the side a = 12 cm. Calculate the area of a triangle in the square. - Government 14723
Vlado moves at a speed of 4 km/h. Its step is 0.8 m long. How many steps will the government take in 12 minutes? - Harvesters 14703
Five combine harvesters shit in 12 days. How long does a 2-fold larger field of combine harvesters take? - Applies 14683
Point B is the center of the circle. The line AC touches the circles at point C and applies AB = 20 cm and AC = 16 cm. What is the radius of the circle BC? - Milk
There were 22 liters of milk in three containers. There were 6 liters more in the first container than in the second. After pouring 5 liters from the first container into the third container, the same quantity of milk is in the second and third containers - Two trains
Two trains departed from City A and City B against each other. They met after some time. The first train took 9 hours to reach city B, and the second took 4 hours to reach city A. In what proportion were the train speeds? - Length of the edge
Find the length of the edge of a cube with a cm² surface and a volume in cm³ expressed by the same number. - Escaping 14483
The rocket develops a higher speed, which is: a) higher velocity of escaping gases b) higher mass of escaping gases c) greater momentum of escaping gases d) shorter rocket length - Increases 14471
How many percent will it increase a) surface b) cube volume if the edge of the cube increases by 25%? - There
There is a stretched steel cable between the three columns. The height of the first column is 4 m, and the height of the second is 3.5 m. The distance between the first two columns is 2.5 m, and the distance between the second and third is 5 m. The heels - The Indian tent
The Indian tent is cone-shaped. Its height is 3.5 m. The diameter of the base is 2.5 m. How much canvas is needed to make a tire? - Three-fifths 14403
Three-fifths of the flowers are red, and eight flowers are yellow - how many bouquets of red and yellow flowers do they have?
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.
