Algebra 2
posted by Jay .
The purity of gold is measured in karats. Twentyfour karat gold is pure gold and k karat gold is k/24 gold by mass. One piece of 16karat gld jewelry has a mass of 30 grams and another piece of 10karat gold jewelry has a mass of 40 grams. Find the number of grams in the positive difference between the amount of pure gold in each piece of jewelry. Express answer as a mixed number.
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