A bottle that holds 250 grams of water holds only 175 grams of gasoline. What is the density of the gasoline? Take the density of water to be 1.0 g/ml

mass = volume x density. Rearrange to find
volume = mass/density
volume of the bottle = 250/1.00 = ??

Now that you know the volume, we know density of the gasoline is
density = mass/volume = 175/volume of the bottle from above.

7/10 g/ml

To find the volume of the bottle, you can divide the mass of water it holds by the density of water:

Volume of the bottle = Mass of water / Density of water = 250 grams / 1.0 g/ml = 250 ml

Now that you know the volume of the bottle, you can find the density of the gasoline by dividing its mass by the volume of the bottle:

Density of gasoline = Mass of gasoline / Volume of the bottle = 175 grams / 250 ml = 0.7 g/ml

Therefore, the density of the gasoline is 0.7 g/ml.