SOLUTION: A gold and copper bracelet weighs 238 grams. The volume of the bracelet is 15 cubic cenimeters. Gold weighs 19.3 grams per cubic cenimeter and copper weighs 9 grams per cubic cenim

Question 232750: A gold and copper bracelet weighs 238 grams. The volume of the bracelet is 15 cubic cenimeters. Gold weighs 19.3 grams per cubic cenimeter and copper weighs 9 grams per cubic cenimeter. How many grams of copper are mixed with the gold?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = grams of copper in bracelet
Let = grams of gold in bracelet
given:
(1) g
(2) cm3
This is 2 equations and 2 unknowns, so it's solvable
Multiply both sides of (2) by
(2)
Multiply both sides of (1) by and subtract from (2)
(2)
(1)

45 grams of copper are mixed with the gold
check answer:
(1)

(2)
(2)

OK
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