The original area of a face would be a^2. Now that you added b to the edge, the new area of each face would be (a+b)^2. To find how much the are increased, subtract a^2 from (a+b)^2. So the answer is b(2a+b)
When 1600 is increased by 20% and the resulting number is decreased by y% the answer is 1536. Find the value of y?
1 answer:
You might be interested in