A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations.
It takes approximately 31 empty aluminum cans to equal 1 pound. As of 2014, the average weight of an empty aluminum can is 14.9 grams.
How many 12 ounce aluminum cans make a pound? In mathematical writing: x(12 ounces)= 1 pound. 1 pound = 16 ounces, so use substitution: x(12 ounces)=16 ounces. Forget the word ounces and write it again: 12x=16.