Answer
$40$ grams.
Work Step by Step
Let $y$ be the amount of $12$ karat gold, then $60-y$ is the amount of pure gold.
Then our equation is: $y\cdot\frac{12}{24}+(60-y)\frac{24}{24}=60\cdot\frac{16}{24}\\0.5y+60-y=40\\20=0.5y\\40=y$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.7 - Problem Solving: Interest, Mixture, Uniform Motion, Constant Rate Job Applications - 1.7 Asses Your Understanding - Page 142: 45
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
