Question

An alloy that is made up of two metals has a density of 8 g/cm3. The density of one of the metals that makes up the alloy is 11 g/cm3, and the density of the other metal that makes up the alloy is 4 g/cm3. To the nearest ones, what percent of the alloy is made up of the metal that has a density of 11 g/cm3? (The strategy used to solve this problem will help later in the semester when we discuss mutarotation of carbohydrates.)