A goldsmith combined pure gold that cost $400 per ounce with an alloy of gold that cost $150 per ounce. How many ounces of each were used to make 50 ounces of gold alloy costing $250 per ounce?
Kai
October 18, 2009
How many ounces of each were used to make 50 ounces of gold alloy costing $250 per ounce?
A goldsmith combined pure gold that cost $400 per ounce with an alloy of gold that cost $150 per ounce. How many ounces of each were used to make 50 ounces of gold alloy costing $250 per ounce?
Kai
February 17, 2009
How many times must you cut a gold bar that is 31 cm long for the pieces to all be the same?
Gold Bar: A gold bar is exactly 31 centimeters long. If you want to divide the bar into smaller segments so that one or a combination of segments can add up to every whole number of centimeters from 1 to 31, how many cuts must you make?
Patty