Grade - math word problems - page 943 of 945

Number of problems found: 18898

Hollow sphere
Calculate the weight of a hollow dural sphere (density 2.75 g/cm³) if the inner diameter is 18 cm and the wall thickness is 3 mm.
Salary
Operatér got to pay 2560 Euros in banknotes of 20 and 500 Eur. Total got 8 banknotes. How many were which?
Chickens and rabbits
In the yard were chickens and rabbits. Together they had 30 heads and 100 legs. How many chickens and how many rabbits were in the yard?
Cube - angles
Calculate the angle alpha (α) between the wall diagonal and cube base. Calculate the angle beta (β) between the cube body diagonal and the cube base.
Plasticine ball
Plasticine balls have a radius r₁=77 cm, r₂=98 mm, r₃=9 cm, r₄=81 cm, r₅=5 cm, r₆=74 mm, r₇=49 mm, r₈=43 mm, r₉=26 mm, r₁₀=2 cm. They are molded
Scientists from the Social Insurance
Pavol became on sick leave, and social insurance granted him sick leave of 12.68358032 EUR per day. Calculate the number of days to save Pavol from rolling in the price of 0.15 Eur if they postpone the amount of the last decimal place of his sickness ever
Rhombus
Calculate the perimeter and area of a rhombus whose diagonals are 21 cm and 44 cm long.
Playing cards
How many possible ways are there to shuffle 6 playing cards?
Triangle SAA
The triangle has one side long 23 m, and its two internal angles are 60°. Calculate the perimeter and area of the triangle.
Triangles
An equilateral triangle with a side of 16 cm has the same perimeter as an isosceles triangle with an arm of 23 cm. Calculate the base x of an isosceles triangle.
Square and circles
Square with sides 68 km is circumscribed and inscribed with circles. Determine the radiuses of both circles.
Cube diagonal
Determine the length of the cube diagonal with edge 23 km.
Ladder
The ladder 8 m long is leaning against the wall. Its foot is 1 m away from the wall. At which height does the ladder touch the wall?
Percentages and numbers
How much is the percentage of number 69 smaller over number 276?
Percent calculation
Calculate 12% if 41% is 74.
Car inflation
What percentage of car price increases if the price rises from €4790 to €4890?
Trapezoid
Calculate the area of trapezoid ABCD with sides |AB|= 78 cm, |BC|=51 cm, |CD|=15 cm, |AD|=30 cm..
Quadratic equation
Solve a quadratic equation: 2x²+28x-550=0
Two numbers
Find two numbers whose difference and the ratio are 4.
Acid
The barrel is 79 liters of 60% acid. How many percent of acids occur when 4 liters are revoked and replaced with the same amount of water?

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