SOLUTION: A bracelet that is supposed to be 18-Karat Gold weighs 238 grams. Gold weighs 19.3 grams per cubic centimeter. Copper weights 9 grams per cubic centimeter. The volume of the br

Question 919236: A bracelet that is supposed to be 18-Karat Gold weighs 238 grams. Gold weighs 19.3 grams per cubic centimeter. Copper weights 9 grams per cubic centimeter. The volume of the bracelet is 15 cubic centimeters of gold and copper. Is the bracelet really 18-Karat Gold?
How do I set this problem in a system of equation? (Substitution,Graphing &Elimination)

Much thanks . (:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
If the bracelet were % gold, it would weigh

Using the info given in the problem, the volume is and gold weighs for a pure gold bracelet.
This one weighs only . So it is 'less than gold' and the bracelet is really 18-Karat Gold
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