Expression of a variable from the formula - math word problems
Number of examples found: 808
- Volume and area
What is the volume of a cube which has area of 361 cm2?
- Interior angles
Calculate the interior angles of a triangle that are in the ratio 2: 3: 4.
- The price
The price of the land increased by 17%. What was the original price of the land if it now costs 46800 €?
- Radius of the circle
Calculate the radius of the circle whose length is 107 cm larger than its diameter
- Hollow sphere
The volume of the hollow ball is 3432 cm3. What is its internal radius when the wall thickness is 3 cm?
Jar with jam weighs 800 grams. Jam weighs three times as much as the empty glass. What is the weight of jam that is in the glass?
- Water tank
300hl of water was filled into the tank 12 m long and 6 m wide. How high does it reach?
Find the radius of the circle with area S = 200 cm².
- Equilateral triangle
Calculate the area of an equilateral triangle with circumference 72cm.
- Third dimension
Calculate the third dimension of the cuboid: a) V = 224 m3, a = 7 m, b = 4 m b) V = 216 dm3, a = 9 dm, c = 4 dm
The weight of the calf meat obtained is 65% of the total weight of live calves. What was the weight of a calf from which 285 kg of meat was obtained?
- Apples 5
In six crates are 45 kg of apples. In five crates were the same amounth and in one crate was 3 kg of apples more. How many kg of apples were in each crate?
- Q of GP
Calculate quotient of geometric progression if a1=5 a a1+a2=12.
- Bike cost
The father gave his son € 100 to buy a bicycle, which was 40% of the total amount of the bicycle. How much did the bike cost?
- Quadrilateral prism
The surface of the regular quadrilateral prism is 8800 cm2, the base edge is 20 cm long. Calculate the volume of the prism
- 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?
- Difference AP
Calculate the difference of arithmetic progression if the sum of its first 19 members Sn = 8075 and the first member is a1 = 20
- Twice of radius
How many times does the surface of a sphere decrease if we reduce its radius twice?
- A bottle
A bottle full of cola weighs 1,320 g. If we drink three-tenths of it, it will weigh 1,008g. How much does an empty bottle weigh?
- Unknown mixed number
Find the number that is smaller than 5 5/12 by as much as 2 2/13 is smaller than 6 1/6