The density of an object is y^10grams/cm^3. its volume is y^4cm^3. what is the objects mass?

40 grams

Step-by-step explanation:

Density=mass/volume

Mass=density*volume

Mass= 10*4 = 40grams

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: