Expression of a variable from the formula - practice for 12 year olds - page 5 of 34
Number of problems found: 670
- Calculate 41881
The volume of the sphere is 803.84m³. Calculate its surface. - Circumference 20703
How do I change the length of a diamond's side if I want its circumference to double? - Surface 10521
What is the length of the edge of the cube, the surface of which is 384 dm² - Determine 8115
The number of blue and green candies is 5:6. and The number of red and green candies is 3:8. Determine the ratio of red and blue candies. - Calculate 4582
Calculate the surface of a sphere whose volume is 33.9 cm cubic. - Emily 2
Emily is thinking of a number, which she calls n. She finds 1/4 of the number and then subtracts 3. Write an expression to represent Emily's number. - Each side
Each side of a regular polygon is 5.2 m, and its perimeter is 36.4 m. Find the number of sides of a polygon. - A rectangle 10
A rectangle has a length of 8 millimeters and an area of 216 square millimeters. What is the width? What is the perimeter? - A rectangular 3
A rectangular plot of land has an area of 3/2 square kilometers and a length of ¾ kilometer. What is the width of the plot of land? - Maya is
Maya is 14 years old. Her brother Jorge is three years more than half her age. Which of the following is the correct expression for Jorge's age? - Distributive property
Verify the distributive property a×(b+c)=(a×b)+(a*c) for the rational number a=5/8, b=7/4 and c=2/3 - Interior angles
Calculate the interior angles of a triangle that are in the ratio 2:3:4. - Height of the cylinder
The cylinder volume is 150 dm cubic. The base diameter is 100 cm. What is the height of the cylinder? - Radius
Find the radius of the circle with area S = 200 cm². - Parallelogram
Calculate the missing side of a parallelogram if you know the perimeter o and one side: a) o = 7.2 cm; b = 1.8 cm b) o = 5.4 cm; a = 1.9 cm - Rectangle from string
String 12m. Make a rectangle when one side is two times longer than its width. - Price increase
A 20 percent price increase meant a 90-crown raise. How much cost a product after? - Cylinder twice
If the radius of the cylinder increases twice, and the height is reduced twice, then the volume of the cylinder increases (how many times?): - Even / odd numbers
a / Using variable n, write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are these numbers? - Cube basics
How long is the edge length of a cube with volume 15 m³?
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