SOLUTION: how much pure gold should be melted with 15 grams of 14-karat gold to produce 18-karat gold?

Question 100572: how much pure gold should be melted with 15 grams of 14-karat gold to produce 18-karat gold?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
how much pure gold should be melted with 15 grams of 14-karat gold to produce 18-karat gold?
:
Pure gold is 24 karat
:
Let x = amt of pure gold
:
A karat equation:
14(15) + 24(x) = 18(x + 15)
210 + 24x = 18x + 270
24x - 18x = 270 - 210
6x = 60
x = 10 grams of pure gold required
:
:
Check solution of x = 10:
14(15) + 24(10) = 18(25)
RELATED QUESTIONS
How much pure gold should be mixed with 12 karat gold to obtain 72 grams of 18 karat... (answered by Alan3354)

how much 14-karat gold should be melted with 4 ounces of pure gold to produce 18-karat... (answered by josmiceli)

One hundred pure gold is 24-karat gold, which is to soft to be made into jewelry. Most... (answered by josgarithmetic)

One hundred percent pure gold is 24-karat gold, which is too soft to be made into... (answered by josmiceli)

One Hundred Percent Pure Gold is 24-Karat, which is too soft to be made into jewelry.... (answered by stanbon)

For thousands of years, gold has been considered one of the Earth's most precious metals. (answered by mananth)

The purity of gold is measured in karats, with pure gold being 24 karats. Other purities... (answered by timofer)

for thousands of years, gold has been considered one of earths most precious metals. one... (answered by ankor@dixie-net.com)

The purity of gold is measured in karats, with pure gold being 24 karats. Other purities... (answered by ankor@dixie-net.com)