Question
The volume of a liquid varies directly with its mass. A certain liquid with mass 16kg has a volume of 2L
Write the equation that relates the volume. V. to the mass, m.
What is the volume liters, of 128kg of this liquid?

Step-by-step explanation:

This problem bothers on the density of substances

Given data

Mass of substance m= 16kg

Volume of substance v = 2L

the equation that relates the volume. V. to the mass, m is the expression for density

ρ= mass/volume

Substituting our given data

ρ= 16/2= 8kg/L

Using the density calculated above we can get the volume liters, of 128kg of liquid

8= 128/v

v=128/8

v= 16L

The volume is 16L

The density of a substance is expressed as the mass per unit volume

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: