# Expression of a variable from the formula - practice for 12 year olds

#### Number of problems found: 16

- Centimeters 68084

The cube-shaped container has a surface area of 320 square centimeters without a lid. Calculate its volume. - Measuring 67484

We poured 3 liters of water into an empty aquarium measuring 30x20 cm and 25 cm high. What is the level? - Circumference 67334

What is the area and circumference of a diamond whose diagonals are 7 dm and 12dm in length and 6 dm in height? - Quadrilateral 66294

Calculate the surface and volume of a quadrilateral prism if given: the area of the base is 40 cm square, the bottom of the base is k = 8 cm, and the height of the prism is 1.3 dm (the bottom is a rectangle) - Calculate 64584

The base of the block is a square with an area of 16 cm². The surface of the block is 128 cm². You calculate the volume of the block in cm³. - The expression

What is the value of the expression ((6^{2}+60))/(2^{3}) - Calculate 41881

The volume of the sphere is 803.84m³. Calculate its surface. - The length 2

The length of a rectangle is 12y² – 15y + 8 and the width is 7y – 11. Find the area of the rectangle - Surface 40621

The surface of the sphere is 535 m². What is its volume? - Pineapples 33061

We can exchange three bananas for four oranges in a barter shop, and nine bananas are obtained for four pineapples. How many oranges do we get for one pineapple? - The cube

The cube has a surface area of 216 dm². Calculate: a) the area of one wall, b) edge length, c) cube volume. - Circumference 21603

The circumference of the diamond is 29.6dm. a - calculate the length of its side b - calculate the area of the diamond if its height measures 5 dm - Two rectangular boxes

Two rectangular boxes with dimensions of 5 cm, 8 cm, 10 cm, and 5 cm, 12 cm, 1 dm are to be replaced by a single cube box of the same cubic volume. Calculate its surface. - Calculate 6339

Calculate the missing page and the area of the ABCD trapezoid if you know: a = 7.5 b = 3.6 d = 4.4 v = 3.4 o = 19 c =? S =? - Midpoints

Triangle ABC with sides a = 5 cm, b = 3 cm, c = 40mm has a midpoint of K, L, M. How many centimeters is long perimeter of parallelogram KBLM? - Unknown number 5

Daniel thinks an integer. When he change this number at a ratio of 2:5, he got the number 2.8. Determine what number think Daniel.

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Expression of a variable from the formula - practice problems. Maths practice for 8 year olds.