Hey Blades, I'm trying to find a variable but I can't define my formula. This is real life application algebra for all young Blades that see this and question their math teachers. 1 ton of asphalt spread 2.5 inches thick will cover 80 square feet of driveway. If it is spread 3 inches thick, how many square feet will it cover? Please show me the formula too.
Pretty simple formula, cause you're doing height x square feet (length x width), so really you're dealing with volume, or cubic feet. The volume is constant, so just use a ratio 2.5*80=3*x 200=3x 200/3=x 66.67=x So, ~67 ft^2
The variable is how many inches thick you spread it. Formula is 2000lb/80sqft= 25lb per 12 square inches 80sqft 12*12*2.5 = 360 cubic inches per square foot 25lb/360cubic inches = .069444(bar)lb per cubic inch then lets see... and then 12*12*3 = 432 square inches per foot 360cubic inches per foot * 80 ft = 28,800 cubic inches total 28,800cubic inches * .069444(bar)lb per cubic inch = 2klb(2 thousand pounds (432* X) * .069444(bar)lb per cubic inch = 2k so then 2000/ .069444(bar) = 28,800/ 432 = 66.6666667 square feet total. and well fuck... now i just figured out an easier way to do it just go : 2000/2.5 = 800 which equals 80 800/ 80 gives a ratio of 10 2000/3 = 666.6666667 which equal X 666.6666667/ 10 = 66.66666667 feet