A Ratio Word Problem – Can You Help?
Written by Admin on February 10, 2010The invoke of antimonial adornment and added products is rhythmic in karats (K), where 24K represents decent gold. The assessment 14K on a anxiety indicates that the ratio between the accruement of the antimonial in the anxiety and the accruement of the anxiety is 14 : 24. If a gold ring is blemished 18K and it weighs 0.4 oz, what is the activity of the antimonial in the anulus if decent antimonial is valued at $300 per oz?
Thanks!
Originally posted 2009-09-10 12:05:08. Republished by Old Post Promoter
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2 Comments to “A Ratio Word Problem – Can You Help?”
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1:39 pm on September 10th, 2009
18 : 24 = 3 : 4
0.4 oz = $120
75% of $120 = $90 (I might be wrong)
ok using Geezah’s equation,
g/0.4 = 18/24
g = (7.2/9.6) * 300
g = 0.75 * 300
g = 225
8:29 pm on September 10th, 2009
Let g be the ounces of pure gold that’s actually in the ring. If the whole ring weighs 0.4 oz, then g/0.4 = 18/24. Solve this for g to find the ounces of pure gold in the ring, and then multiply the result by $300 to get the value.