Rearrange variables - math word problems - page 92 of 145
Number of problems found: 2899
- Wage variance deviation
A statistician monitored the variance of monthly wages and found its value to be 640,000. Determine the standard deviation of salaries if there is a one-off increase: a) about CZK 1,800, b) about 5%. - Sugar production
From 1 ton of beet, 150 kg of sugar is produced. 450 kg of lime is consumed to clean 1 ton of sugar. Calculate how many kgs of lime are consumed when processing 1 ton of sugar beet. - Tree planting calculation
The conservation unit planted clearings on 4/7 (this is a fraction) on Saturday; on Sunday, he had 2,100 trees to grow. How many trees have conservationists planted on both days? - Area to volume
If the surface area of a cube is 486, find its volume. - Product tax calculation
The product was taxed at 20% and is sold for CZK 600. How many CZK was the product sold for if the government charged only 10% of taxes? - Marriage sttus
In our city, 3/5 of the women are married to 2/3 of the men. Find what part of the population is free. - Calculate 2
Calculate the largest angle of the triangle whose sides are 5.2cm, 3.6cm, and 2.1cm - Acid Solution Percentage
The barrel contains 199 liters of 38% acid solution. What percentage of acid is created when we take 61 liters and replace it with the same amount of water? - Base from Per Mille
Determine the base if 2.8 per mille is 50. - Substitution method
Solve a goniometric equation: sin4 θ - 1/cos² θ=cos² θ - 2 - School club The sports club at school is attended by boys and three fewer girls than boys. How many girls attend the circle?
- Cube
The sum of all cube edges is 30cm. Find the surface area of the cube. - Diagonals of a rhombus 2
One diagonal of a rhombus is greater than the other by 4 cm. If the area of the rhombus is 96 cm2, find the side of the rhombus. - Pilot
How high can the airplane's pilot see 0.001 of Earth's surface? - Isosceles trapezoid
The old father decided to change the top plate of an isosceles-like trapezoid, which has basic dimensions of 120 cm and 60 cm, and a shoulder that is 50 centimeters long. How much does it pay for a new plate and a square meter worth 17 euros? - Area of a circle
The circumference of the circle is 150.72 centimeters. Calculate the area of the circle. - Hectoliters
How deep is the pool if there are 2025 hectoliters of water, the bottom dimensions are a = 15 meters b = 7.5 meters, and the water level is up to 9/10 (nine-tenths) of the height? - Three pumps
We are filling the pool. The pool would fill the first pump in 12 hours and the second in 15 hours. If all three pumps ran simultaneously, they would fill the pool for 4 hours. How long would the pool fill only with the third pump? - Diagonals of the rhombus
How long are the diagonals e, and f in the diamond if its side is 5 cm long and its area is 20 cm²? - Isosceles trapezium
Calculate the area of an isosceles trapezium ABCD if a = 10cm, b = 5cm, c = 4cm.
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