# Expression of a variable from the formula - 6th grade (11y) - math problems

#### Number of problems found: 104

- An equilateral triangle

The perimeter of an equilateral triangle is 33cm. How long is each side? - Radius of the circle

Calculate the radius of the circle whose length is 107 cm larger than its diameter - Steel tube

The steel tube has an inner diameter of 4 cm and an outer diameter of 4.8 cm. The density of the steel is 7800 kg/m3. Calculate its length if it weighs 15 kg. - The perimeter 3

The perimeter of a rectangle is 35 cm. The ratio of the length to its width is 3:2. Calculate the dimensions of the rectangle - Number of songs

Write an expression for the number of songs they need for this show. Evan and Peter have a radio show that has 2 parts. They need 4 fewer than 11 songs in the first part. In the second part, they need 5 fewer than 3 times the number of songs in the first - Water tank

What is the height of the cuboid-shaped tank with the bottom dimensions of 80 cm and 50 cm if the 480 liters of water reaches 10 cm below the top? - Sum of four numbers

The sum of four consecutive natural numbers is 114. Find them. - A cylindrical tank

A cylindrical tank can hold 44 cubic meters of water. If the radius of the tank is 3.5 meters, how high is the tank? - Rectangle 45

The perimeter of a rectangle is 60cm. If the length of the rectangle is 20cm. a)find the width b)find the area. - Two thirds

Find two-thirds of the number equal to two-thirds of 99 - Edges or sides

Calculate the cube volume, if the sum of the lengths of all sides is 276 cm. - Isosceles triangle

The circumference of the isosceles triangle is 32.5 dm. Base length is 153 cm. How long is the leg of this triangle? - Expression

Solve for a specified variable: P=a+4b+3c, for a - Cube edges

The sum of the lengths of the cube edges is 42 cm. Calculate the surface of the cube. - Clothes

Danka and Janka collect clothes. Danka had 9 more than Janka, so she gave her 7. Which now has more cloth and how many? - A rectangle

A rectangle has an area of 36 cm^{2}. What could the length and width of rectangle be? - The tourist

The tourist came started from the hostel at an average speed of 5km/h. Half an hour later, the bicyclist started along the same route at a speed of 20km/h. How many minutes will a cyclist catch up and how many kilometers will he go? - Three pumps

The water tank is emptied with the first pump in 6 hours, with the second pump in 2 hours. In order to be emptied in 1 hour, all three pumps had to be started at once. How long will take tank be emptied by only the third pump? - Simple sequence

Continue with this series of numbers: 1792,448, 112, _, _ - Twenty

Twenty rabbits are put in 4 cells so that there are different number of rabbits in each cell contains at least 3 rabbits. What is the largest possible number of rabbits in one cell

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