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What is the probability of randomly choosing a silver tack or a white tack from a box that contains only 15 blue tacks 5 red tacks 20 white tacks and 8 silver tacks?
Wiki User
∙ 11y ago
If there are 48 tacks, (15+5+20+8), you want to divide the number of one color over the total to find the percentage of that color out of the whole.
If there are 8 silver tacks, take 8 over 48, which equals .167.If there are 20 white tacks, take 20 over 48, which equals .4167
Now you know the percentage of silver out of the whole, and the percentage of white out of the whole.
To figure out the white and silver together, add them together!
White and Silver tacks make up about .583, or 58.3%
And that's your answer. You have a 58% chance of picking a white or silver tack from the box when picked at random.
Wiki User
∙ 11y ago
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Lisa has 9 rings in her jewelry box Five are gold and 4 are silver If she randomly selects 3 rings to wear to a party find the probability that 2 are silver or 2 are gold?
Probability=Successes/Outcomes She has 9 rings, and wants to choose 3 to wear. To find the number of outcomes: 9 C 3= 84. There are 84 possible outcomes Now you need to find the number of successes When she wears 2 silver rings, she has to wear 1 gold ring, and when she wears 2 gold rings, she must wear 1 silver ring. This is because she randomly selects 3 rings to wear. Because these are mutually exclusive events, P(2 silver or 2 gold)= P(2 silver and 1 gold) + P(2 gold and 1 silver) # of successes= (4 C 2)(5 C 1) +(5 C 2)(4 C 1) # of successes= (6)(5)+(10)(4) # of successes= 30+40 # of successes= 70 P(2 silver or 2 gold)= successes/outcomes P(2 silver or 2 gold)= 70/84 P(2 silver or 2 gold)= 5/6
How many grams of siler is in A 1922 silver dollar?
It contains 24.057 grams of pure silver.
How much silver in a 1922 silver dollar?
The amount of pure silver in the 1922 Peace dollar is .77344oz, all US silver one dollar coins from 1840 to 1935 have this much silver in them.
What does 625 mean on sterling silver jewelry?
Silver is too soft to use in jewelry in its 100% form and it has to be mixed with another metal to make it stronger.92.5 also reffered to as solid silver means that it has a silver content of 92.5% the remaining metal is the one that makes the silver hard enough to make into Jewelry. Sorry but 925 does not mean "pure silver" it means it is Sterling Silver. Pure silver is marked 999, meaning 99.9% purity. 925 means it has 92.5% purity, and 7.5% another alloy. Coin silver used in our pre-1965 circulating silver coinage is 900, or 90% pure, which also means silver doesn't have to have another alloy mixed with it to be hard enough to use. Even pure 999 silver is hard enough to make jewelry with as many countries (including the USA) mint large coins using 99.9% pure silver that hold up well.62.5 Silver means it has a silver content of 62.5% in this form it cannot be called solid silver as it has 30 plus % of an alloy in it.
How much silver is in a 1922 silver dollar?
1 Dollar "Peace Dollar" 1921-1935 Commemorative: End of World War I Silver (.900) - 26.73 g - ø 38.1 mm so 90% is silver of the 26.73gm total weight
How can you get a fire stone in Soul Silver?
You can randomly get it as a reward at the Pokeathelon.
Where do you get latias in Soul Silver?
After you get your National Dex, it will be randomly roaming about the Kanto Region.
Is silver organic?
No Silver is an element that contains only silver. In order to be considered organic a substance must be a compound that contains carbon and hydrogen.
What is the Silver content of an American dime?
If it's dated 1964 or earlier, it contains 90% silver with 10% copper. If it's dated after 1964, it contains no silver.
What metals are in a silver quarter?
The US silver quarter contains 90% silver and 10% copper.
What compound contain silver?
One example of a compound that contains silver is silver nitrate, AgNO3.
How Much silver is in a US Silver Eagle bullion coin?
It contains 1 ounce of silver.
Does silver contain nickel?
No, nickel is an element. Silver is another element. Neither are alloys, silver only contains silver, nickel only contains nickel. "German silver", which is not actually silver, does contain nickel. It's a silver-colored alloy of nickel, copper and zinc.
Where do you get Squirtle in Silver?
After beating Red at Mt. Silver, Professor Oak will give you the choice in choosing the 3 Kanto starters.
How many atoms are in 62 moles of silver?
1 mole of silver contains 6.022 X 10^23 atoms 62 moles of silver contains 3.73 X 10^25 atoms of silver
What has more silver 4 silver quarters or 1 silver dollar?
1 Morgan Silver Dollar contains 0.77344 Troy ounces of silver while 4 silver quarters contain 0.72336 ounces of silver (0.18084 X 4). The Morgan Silver Dollar contains more silver than 4 silver Quarters.
Does stainless steel flatware contain 925 silver?
No. It's just steel no silver at all. If it is silver plated it will say so, but that does not mean it contains silver. A plus A nicely made set of stainless steel flatware may not be silver, but you don't have to take it out of it's presentation box once a month to polish it.
