What is the mass of an object that has a density of 1.3 g/cm3 and a volume of 2 cm3? (The density of an object has the equation d.)

The mass of the object is 2.6 grams

Step-by-step explanation:

The density of an object is the ratio between its mass and its volume

The equation of the is d = , where

Let us use this equation to solve the question

∵ An object has a density of 1.3 g/cm³

∴ d = 1.3 g/cm³

∵ Its volume is 2 cm³

∴ V = 2 cm³

→ Substitute them in the equation of the denisty above

∵ 1.3 =

→ Multiply both sides by 2

∴ 2 × 1.3 = 2 ×

∴ 2.6 = m

∴ The mass of the object is 2.6 grams

9x + 6

Step-by-step explanation:

5x + ( x + 6 ) + 3x

= 5x + 3x + x + 6

= 9x + 6