Expression of a variable from the formula - math word problems - last page

Number of problems found: 2771

Sphere growth
How many times does a volume of the sphere rise if priemer rises 10×?
Floating barrel
The barrel (cylinder shape) floats on water, the top of the barrel is 8 dm above water, and the width of the surfaced barrel part is 23 dm. The barrel length is 24 dm. Calculate the volume of the barrel.
Garden
Trapezoid garden has parallel sides 19 m and 24 m. Its area is 193.5 square meters. What is the width of the garden?
Shape
The plane shape has a maximum area 677 mm². Calculate its perimeter if the perimeter is the smallest possible.

Rhombus problem
The perimeter of the rhombus is 268 m, and its area is 2278 m². Calculate the height of the rhombus.
Cube wall
The surface of the first cube wall is 64 m². The second cube area is 40% of the surface of the first cube. Find the length of the edge of the second cube (x).
Playground
The rectangular playground is fenced with 38 m long netting. Its width is 7 m. Calculate its length.
Square diagonal
Calculate the length of the square diagonal if the perimeter is 172 cm.
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.

Crossroads
A passenger car and an ambulance come to the rectangular crossroads, and the ambulance leaves. The passenger car is moving at 39 km/h, and the ambulance is moving at 41 km/h. Calculate the relative speed of the ambulance moving to the car.
Right triangle
Calculate the unknown side b and interior angles, perimeter, and area of a right triangle if a=10 cm and hypotenuse c = 16 cm.

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