Algebra 1
posted by Kris .
In 2000, the internatonal price of gold was $270 per ounce, and the price of silver was $5 per ounce. How much silver could be mixed with 9 oz of gold to obtain a mixture that costs $164 per ounce?

total weight of silver + gold = s+g
total value of s+g = 5s + 270g
So, now for the mixture
5s + 270g = (s+g)*164
Bu, g=9
5s + 270*9 = 164(s+9)
5s + 2430 = 164s + 1476
159s = 954
s = 6
Respond to this Question
Similar Questions

Algebra
A pawn shop is selling gold for $12.00 an ounce and platinum for $9.00 an ounce. How much of each should be used to make a goldplatinum mixture of x pounds selling for $y an ounce? 
Physics
At the time this problem was written, the price of gold was $427 per ounce, while that of platinum was $866 an ounce. The "ounce" in this case is the troy ounce, which is equal to 31.1035 g. The density of gold is 19.3 g/cm^3 and that … 
Finance
Using Monte Carlo simulation, calculate the price of a 1year European option to give up 100 ounces of silver in exchange for 1 ounce of gold. The current prices of gold and silver are $380 and $4, respectively; the riskfree interest … 
algebra
a jeweler purchased 5 oz of a gold alloy and 20 oz of a silver alloy for a total cost of $540. The next day at the same price per ounce, the jeweler purchased 4 oz of th egold alloy and 25 oz of the silver alloy for a total cost of … 
College Chemistry/Lab Math
I think I have this problem figured out correctly, but is there anyone who can tell me if I'm doing something wrong. The question is... "One troy ounce of gold is worth $380. There are 33.8 grams per troy ounce. You have a stock colloidal … 
algebra
A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30ounce alloy that costs $6.30 per … 
math
A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30ounce alloy that costs $6.30 per … 
math
A jeweler wants to make a silver alloy to be used to make necklaces. How many ounces of a silver alloy that costs $3.50 per ounce should be mixed with one that costs $7.00 per ounce to make a new 30ounce alloy that costs $6.30 per … 
pre calc
A jeweler wants to make a 1 ounce ring composed of gold and silver, using $200 worth of metal. If gold costs $6000 per ounce and silver is $50 per ounce, how much of eat metal should she use? 
Algebra 1
A jeweler buys gold jewelry and resells the gold to a refinery. The jeweler buys gold for $1,235.55 per ounce, and then resells it for $1,376.44 per ounce. How much profit does the jeweler make from buying and reselling 73.5 ounces …