0
What else can I help you with?
How much of an alloy that is 30 percent copper should be mixed with 600 ounces of an alloy that is 90 percent copper in order to get a alloy that is 60 percent copper?
Since the percentages of copper in the two components to be mixed are symmetric about the desired result, the answer is that the same amounts should be used. 600 ounces of the 30% copper.
How much of an alloy that is 20 percent copper should be mixed with 300 ounces of an alloy that is 60 percent copper in order to get an alloy that is 30 percent copper?
900 ounces. Since this contains 20% copper, The copper content will be 180 ounces. The original 300 ounces contain 30% copper which is also 180 ounces. Hence in the resulting mixture of 1200 ounces (300+900), the total copper is 360 ounces (180+180). Hence the copper content of resulting mixture is 360/1200 which is 30%
How much of an alloy that is 40 percent copper should be mixed with 400 ounces of an alloy that is 80 percent copper in order to get an alloy that is 60 percent alloy?
Designate the weight in ounces of the first alloy, containing 40 percent copper, as w. Then, from the problem statement and the fact that percentages can be converted to decimals by dividing by 100, 0.40w + (0.80)(400) = 0.60(400 + w). Applying the usual methods of algebra, multiplying out results in: 0.40 w + 320 = 240 + 0.60w; transposing like terms with sign change and collecting results in: (0.40 - 0.60)w = 240 -320; or -0.20 w = -80, or w = 400.
What is the name of mixed base metals?
the answer is alloy
How much nickel is in a US half dollar?
Circulation-strike half dollars dated 1971 and later contain about 0.95 gm of nickel. The rest is copper, either in the pure copper core or mixed in the alloy used for the outer cladding. Older halves don't contain any nickel. Those dated 1965-70 are made of 40% silver and 60% copper, and halves (as well as dimes and quarters) dated 1964 and earlier are 90% silver alloy.
How much of an alloy that is 10 percent copper should be mixed with 400 ounces of an alloy that is 70 percent copper in order to get an alloy that is 20 percent?
How much of an alloy that is 10% copper should be mixed with 400 ounces of an alloy that is 70% copper in order to get an alloy that is 20%
How much of an alloy that is 40 percent copper should be mixed with 400 ounces of an alloy that is 70 percent copper in order to get an alloy that is 50 percent copper?
200 ounces.
How much of an alloy that is 30 percent copper should be mixed with 600 ounces of an alloy that is 90 percent copper in order to get a alloy that is 60 percent copper?
Since the percentages of copper in the two components to be mixed are symmetric about the desired result, the answer is that the same amounts should be used. 600 ounces of the 30% copper.
How much of alloy that is 20 percent copper should be mixed with 200 ounces of an alloy that is 50 percent copper in order to get an alloy that is 30 percent copper?
LET X be the weigh tof the 20% alloy and then the total weight of the 30% alloy is 200 +X then 0.20X + .50 (200) = .30 (200 +X) .20X + 100 = 60 + .3X 40 = .1X 400 = X = 400 ounces
How much of an alloy that is 20 percent copper should be mixed with 300 ounces of an alloy that is 60 percent copper in order to get an alloy that is 30 percent copper?
900 ounces. Since this contains 20% copper, The copper content will be 180 ounces. The original 300 ounces contain 30% copper which is also 180 ounces. Hence in the resulting mixture of 1200 ounces (300+900), the total copper is 360 ounces (180+180). Hence the copper content of resulting mixture is 360/1200 which is 30%
What is the industrial name for gold mixed with copper?
The industrial name for gold mixed with copper is called "rose gold." It gets its pinkish hue from the copper alloy mixed with gold.
How much of an alloy that is 40 percent copper should be mixed with 400 ounces of an alloy that is 80 percent copper in order to get an alloy that is 60 percent alloy?
Designate the weight in ounces of the first alloy, containing 40 percent copper, as w. Then, from the problem statement and the fact that percentages can be converted to decimals by dividing by 100, 0.40w + (0.80)(400) = 0.60(400 + w). Applying the usual methods of algebra, multiplying out results in: 0.40 w + 320 = 240 + 0.60w; transposing like terms with sign change and collecting results in: (0.40 - 0.60)w = 240 -320; or -0.20 w = -80, or w = 400.
How much of an alloy that is 20 should be mixed with 100 ounces of an alloy that is 70 copper in order to get that 40 copper?
To create an alloy with 40% copper, you would need to mix equal parts of the 20% alloy with the 70% alloy. This means you need to mix 50 ounces of the 20% alloy with 50 ounces of the 70% alloy to achieve the desired 40% copper content in the final alloy.
How much of an alloy that is 40 copper should be mixed with 500 ounces of an alloy that is 70 copper in order to get an alloy that is 50 copper?
Let ( x ) be the amount of the 40% copper alloy needed. The equation based on the copper content is: [ 0.40x + 0.70(500) = 0.50(x + 500) ] Solving this equation, we find: [ 0.40x + 350 = 0.50x + 250 ] [ 100 = 0.10x ] [ x = 1000 ] Thus, you need to mix 1000 ounces of the 40% copper alloy with 500 ounces of the 70% copper alloy to obtain an alloy that is 50% copper.
Metal alloy that is 18 percent copper how many ounces of an alloy that is 14 percent copper must be mixed with an alloy that is 23 percent copper to form 90 ounces of alloy?
Let x be the amount of the 14% copper alloy. Then, the amount of the 23% copper alloy is 90 - x. Setting up the equation (0.14x + 0.23(90 - x) = 0.18*90) and solving for x gives x = 30. Therefore, you need 30 ounces of the 14% copper alloy.
What metals are mixed with gold to make it red?
Copper is typically mixed with gold to create a red hue. The higher the copper content in the alloy, the redder the gold will appear.
What is mixed with copper to make brass?
Brass is mainly an alloy of copper and zinc. Some alloys do have small amounts of arsenic added also.
