A shop owner bought 30 folders and some journals. He paid $82.50 for the folders. Each journal cost 10 times as much as a folder. What was the cost of each journal?
to find the cost of each folder first: 30/82.50 = 1/x cross multiply: 30x = 82.50 find x. x = 2.75 a journal is 10 times as much as a folder. multiply. 2.75*10=27.50
