# 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 cm^{2}? - 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 cm^{3}. What is its internal radius when the wall thickness is 3 cm? - Jam

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? - Radius

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 m^{3}, a = 7 m, b = 4 m b) V = 216 dm^{3}, a = 9 dm, c = 4 dm - Calf

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 cm^{2}, 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 a_{1}= 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

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