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9x+18y=200*14

x+y=200

y=200-x

9x+18(200-x)=2800

9x+3600-18x=2800

-9x=-800

x=88.9 grams

y=111.1 grams

x= 9 karat gold

y=18 karat gold

Answer: 88.9 grams of 9 karat gold must be mixed with 18 karat gold to produce 200 grams of 14 karat gold.

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Q: How many grams of 9 karat gold must be mixed with 18 karat gold to produce 200 grams of 14 karat gold?
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What is the Number of grams in 18 karat gold?

It depends on the weight of the starting gold. 18 karat is 75% pure gold, and therefore a 1 gram weight of 18 karat gold would have 0.75 grams of pure gold in the alloy.


What is a karat to measure?

The karat is a measure of the purity of gold alloys. In the United States and Canada, the spelling karat is used, while the spelling carat is used to refer to the measure of mass for gemstones. Meanwhile, you can buy a carrot at the local farmers' market.


How many grams of gold are in an 18-karat gold belt that weighs 100 g?

75 g of Gold, everything else are impurities


How many carats gold are there?

Different regions of the world produce different finenesses or grades (carats, Karats, or karats) of gold alloy. These vary from 8 karats (33.3% gold content) to 24 karat (99% gold content). The higher the karat, the softer the metal.Typical grades and percentages are below:8-karat (33.3)9-karat (37.5%)10-karat (41.7%)14-karat (58.5%)18-karat (75.0%)19.2-karat (80.0%)21-carat (87.5%)22-karat (91.6%)24-karat (99.0%)


How much gold 18 carrot worth?

Spot price of 1 troy ounce of gold on 10-05-2010 is currently US dollars $1340.00 per troy ounce. 18 karat gold is 75 percent gold, so take the TROY ounce weight for the 18 karat gold item times .75 to get the PURE 24 karat gold amount, then multiply that by 1340.1 troy ounce of 18 karat gold is worth $1005 dollars.1 troy ounce is equal to 31.1034768 grams, or 1.09714286 US ounces,(so you need MORE than one US ounce of pure 24 karat gold to get the spot price of a TROY ounce of gold!)Another AnswerYou can pick up 18 carrots at the local produce stand for less than two dollars US.

Related questions

What is the Number of grams in 18 karat gold?

It depends on the weight of the starting gold. 18 karat is 75% pure gold, and therefore a 1 gram weight of 18 karat gold would have 0.75 grams of pure gold in the alloy.


How many grams of 18 karet gold in an ounce of 24 karet gold?

There is no 18 Karat gold in an ounce of 24 Karat gold because 24 Karat gold is pure. 18 Karat gold is alloyed with another metal to make it wear longer. There are approx. 31.1 grams of 24 karat gold in a troy oz. A troy oz. is smaller than a regular oz. It would take more than 31.1 grams of 18 Karat gold to equal the pure gold content of 1 oz. of 24 Karat gold.


How much is 23.5 grams of gold worth?

What purity of gold is it? (ex: 14 karat? 18 karat?)


What is a 14 karat gold composed of?

14 karat gold is composed of gold and some other metal mixed in such as silver or nickel.


What is 45 grams of 18k gold worth?

45 Grams of 18 karat Gold = 1,827.679 USD


Is 24 karat or 18 karat more valuable?

Twenty-four karat indicates pure gold; 18 karat gold is mixed with another metal and is thus, less valuable.


Is 14 karat gold a pure substance?

14 karat gold is not a pure substance. Pure gold is 24 karat gold. 14 karat gold is made from 58 percent gold mixed with other metals.


What is meant by 24 karat of gold?

It means it is 100% pure gold. The higher the Karat number the purer the gold.9 karat is the cheapest gold, as it is only around 41% pure.This is because its mixed with another metal such as copper.As the percentage of other metal mixed with the gold is reduced,so the amount of gold is higher.


Is gold mixed with silver?

It can be. Often in jewelry and coins, silver, copper and other metals are used to make the gold stronger & resistant to scratches. Usually people don't care about the other metals mixed with gold, they are concerned with the amount of gold. This is why they have the Karat system. The Karat system is based on 24 parts. So 24 karat gold is 24 parts out of 24, or ~100%. 10 Karat gold is 10 parts out of 24, or ~42% gold. 18 Karat gold is (18/24) or 75% gold. 22 Karat is (22/24) 92% gold.


How much is 3.3 grams of 14kt gold?

The value of 14 karat gold is $24. 27 per gram. The value of 3. 3 grams of 14 karat gold is $80. 10. Although 3. 3 grams of 14 karat gold should cost only $80 most jewelry stores will sky rocket the prices.


How is a karat of gold different from the term carat used to measure gem stones?

In gold, a karat is a measure of purity. 24 karat gold is pure gold, while 18 karat is 75% gold. For gems, a carat measures the mass of the gemstone. 1 carat is 0.2 grams.


What is karat gold?

The general definition of karat gold is any solid alloy which is of gold mixed with other metals below a fineness of 24karats but more than 10karats.