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Density is mass divided by volume, so 81/30=2.7

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12y ago

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What is the volume of 81 grams of aluminum?

The volume will change with the temperature of the aluminium, so there is no one answer to this. At room temperature, the density of aluminium is about 2.7 kilogrammes per cubic metre, and so you should be able to do a division sum to work out the answer.


What is a mass of a solid aluminuim block with a volume of 30 cm?

A centimetre is a measure of length in 1-dimensional space so nothing can have a volume of 30 cm.A block of aluminium, with a volume of 30 cubiccentimetres, has a mass of 81 grams.


How do you solve mass if you have the volume and density?

Determine the value of log 3 81  If A  B n(A)  4, n(B)  7 the n(A  B) = The product of the zeros of the polynomial 7 10 2 x  x  is A)  B) C) D)  If the system of equations 4x  5y  9, 8x  ky 18 has infinitely many solutions then k = A) 8 B) 9 C) 10 D) 1 The discriminant of 2 5 3 0 2 x  x   is A) 1 B) C) 25 D) 24


What is the density of a rock which has a mass of 35 grams and a volume of 7.0 cubic centimeters?

To calculate density, you must calculate the mass divided by the volume. Therefore, density=234 g/ 2.9 cm3 = 80.6896... g/cm3 or 81 g/cm3 using significant figures.


Convert your densities to kg or L and compare these with values with those in g or mL?

To convert densities given in g/mL to kg/L, you need to divide by 1000. For example, 1 g/mL is equal to 0.001 kg/L. When comparing densities, the numerics will remain the same between g/mL and kg/L, but the units will be different - g/mL versus kg/L.


How many moon does it goes into the earth?

Earth has about 50 times the volume of the Moon (and 81 times the mass of the Moon).


How does the Moon's size compares to earths size?

The volume of the Moon is 2% compared to the Earth. You would need 81 objects with the mass of the Moon to match the mass of the Earth.


What is 81 divided by 30?

2.7


What is 30 over 81 to the simplest form?

30/81 simplifies to 10/27


What is the GCF of 9 and 30 and 81?

The GCF is 3.


What two product 81 have sum of 30?

They are: 3*27 = 81 and 3+27 = 30


What are the factors of 30 and 81?

The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30 The factors of 81 are: 1, 3, 9, 27, 81