A partly-full paint can has 0.63 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 13 m2), how thick is the layer of wet paint? Give your answer in meters.

Question

matt101 · Answer

1 m^3 = 264.2 gallons (gotta love non-SI units :P)

$${x \over 0.63}={1 \over 264.2}$$
Using this ratio, you can find the volume of paint you have in cubic meters.

For the second question, you have the volume (from the first question) and two of the three dimensions (the area is a 2D quantity). You need to solve for the third dimension, the height (from the wall). Just use V=lwh=Ah!