you are going to buy a herd of 60 camels. some of the camels have one hump, while others have two humps. the camels with one hump cost $500 dollars, while the camels with two humps cost $800. you count that this herd has a total of 87 humps. how many camels of each type does the herd contain? how much will it cost to buy the whole herd.
