# Density + area - practice problems

#### Number of problems found: 30

- Copper plate

Calculate the thickness of the copper plate with a density 8.7 g/cm³ measuring 1.5 meters and 80 cm and its weight is 3.65 kg - Seeds

The field has a rectangular shape with dimensions of 128 m and 350 m. How many kg of seed are needed for sowing if the 1 m² will consume 25 g of seeds? - Colour - billboard

Shelftalker has the shape of a parallelogram. Its length is 4.9 m and the corresponding height is 3.5 meters. Calculate how much (kg) paint must purchase to redecoration if 1 kg cover 4 m² of shelftalker surface. - Grass seeds

How many kg of grass seed is needed to be sowing a circular field with a diameter of 120 meters when the 1 m² should be used 0.8 grams seeds? - Iron sphere

Iron sphere has weight 100 kg and density ρ = 7600 kg/m³. Calculate the volume, surface, and diameter of the sphere. - Pizza

Pizza with a diameter 50 cm has a weight 559 g. What diameter will have a pizza weighing 855 g if it is made from the same cloth (same thickness....) and same decorated? - Pipe

How long is the pipe with an outside diameter of 0.87 m if his coloring consumed 10 kg of color. 1 kg of color coverage is 6 m². - Sphere

The surface of the sphere is 12100 cm^{2}, and the weight is 136 kg. What is its density? - Copper sheet

The copper plate has a length of 2.2 m, width 92 cm and weighs 5.6 kg. What is the plate thickness, if 1 m^{3}weighs 8732 kg? - Cu thief

The thief stole 121 meters copper wire with a cross-section area of 103 mm². Calculate how much money gets in the scrap redemption if redeemed copper for 4.6 Eur/kg? The density of copper is 8.96 t/m^{3}.

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Tip: Our Density units converter will help you with the conversion of density units. Density - practice problems. Area - practice problems.