Aluminum has a density of 2.7 g/cm3, how much space in cm3 would 81 grams of aluminum occupy?

30 cm³.

Step-by-step explanation:

The following data were obtained from the question:

Density (D) = 2.7 g/cm³

Mass (m) = 81 g

Volume (V) =...?

Density of a substance is simply defined as the mass of the substance per unit volume of the substance. It can be represented mathematically as:

Density (D) = mass (m) /volume (V)

D = m/V

With the above formula, we can obtain the space (volume) occupied by the aluminium as follow:

Density (D) = 2.7 g/cm³

Mass (m) = 81 g

Volume (V) =...?

D = m/V

2.7 = 81/V

Cross multiply

2.7 × V = 81

Divide both side by 2.7

V = 81/2.7

V = 30 cm³

Therefore, the space occupied by the aluminium is 30 cm³.

it's d.

step-by-step explanation:

because: -1(4x + 1y) +2 (1x-3y) distribute each number into the parenthesis.

then you would get: -4x - 1y + 2x -6y combine like terms

and get: 2x -7y

hope my answer has you if not then i'm sorry.

452,489 to the nearest thousand is 452,000