A treasure chest contains coins of various metals: 1/2 of the coins are gold, 1/4 are silver, 1/8 are bronze, and 100 are platinum. How many gold coins are in the chest?

Dave Bowers collects U.S. gold coins. He has a collection of 39 coins. Some are​ $10 coins, and the rest are​ $20 coins. If the face value of the coins is

​$570

how many of each denomination does he​ have?

How many​ $10 coins does he​ have?​

How many​ $20 coins does he​ have?

Dave Bowers collects U.S. gold coins. He has a collection of 53 coins. Some are​ $10 coins, and the rest are​ $20 coins. If the face value of the coins is ​$750, how many of each denomination does he​ have?

How many​ $10 coins does he​ have? nothing ​(Simplify your​ answer.)

How many​ $20 coins does he​ have? nothing ​(Simplify your​ answer.)