1600cm of fresh water of density 1g/cm are mixed with 1200 cm of sea water of density 1.2g/cm'. Determine the density of the mixture..

Explanation:

Volume of fresh water:

Volume = Mass / Density

Volume = 1600/1

= 1600 cm³

Volume of sea water:

Volume = Mass / Density

Volume = 1200/1.2

Volume = 1000 cm³

So,

Total Volume when they are mixed = 1600+1000

Total Volume when they are mixed = 2600 cm³

And,

Total Mass when they are mixed = 1600+1200

Total Mass when they are mixed = 2800 g

Now, Measuring the density of the mixture:

Density = Mass / Volume

Density = 2800/2600

Density = 1.1 g/cm³

Explanation:

Volume of fresh water ⇒ 1600 cm³

Density of fresh water ⇒ 1 g/cm³

Volume of sea water ⇒ 1200 cm³

Density of sea water ⇒ 1.2 g/cm³

Calculate mass of fresh water.

Calculate the mass of sea water.

Find the density of the mixture.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the total distance traveled by the car is

30km + 49km = 79 km .