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PtichkaEL [24]
3 years ago
14

Radium 226, which had been used for cancer treatment, decays with a half-life of 1622 years. suppose there is a 6 gram sample of

radium 226. How long will it take to have 1.5 grams remaining?
Mathematics
1 answer:
sveticcg [70]3 years ago
3 0
This is a relatively simple half life calculation.
To go from 6 to 3 grams, 1622 years is required.
3 to 1.5 grams another 1622 years is required.
So, it undergoes exactly 2 half-lives or 3,244 years.
To see more about half-life click here:
http://www.1728.org/halflife.htm



You might be interested in
how many 1 1/2 centimeter cubes can fit into a rectangular prism that has a length of 12 centimeters , a width of 6 centimeters
VLD [36.1K]

The long, straightforward, brute-force way to slog through the problem:

The prism is 12cm x 6cm x 9cm.

Volume of the prism = (12 x 6 x 9) = 648 cm³

Volume of each little cube = (1.5 x 1.5 x 1.5) = 3/375 cm³

Number of little cubes that fit into the prism =  (648 cm³) / (3.375 cm³) = <em>

                                                                                     192 of them</em>


=============================================

The elegant but almost equally long way to master the problem:

The prism is 12cm x 6cm x 9cm.

If each dimension of your measuring cubie is 1.5cm,
then the prism measures

     (8 cubie lengths) x (4 cubie widths) x (6 cubie heights) .

Its volume is  (8 x 4 x 6) = <em>192 measuring cubies</em>.


8 0
3 years ago
Magalie brings 48 ounces of soda to her daughter's birthday party. She wants to divide allof her soda evenly among the 9 people
Talja [164]

Answer:

Each person will get 5.34 ounces of soda.

Step-by-step explanation:

In order to find out how many ounces of soda each person gets we need to take the total amount of soda Magalie brought to the party and divide it by the number of people that will drink the soda. In this case we have:

amount per person = 48/9 = 5.34 ounces

Each person will get 5.34 ounces of soda.

7 0
3 years ago
Help click all the questions
DedPeter [7]

Answer:

B,B,C

Step-by-step explanation:

#1: Meat is usually in ounces, patties weigh not too much, but enough. reasonable estimate. #2: Oil is a liquid, used not too much in baking. #3: Must be equal to 16/5.

4 0
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Solve each compound inequality
PilotLPTM [1.2K]
5 - 5b < 1 - 4b
5 < 1 + b
4 < b
1 - 4b < 6 - 5b
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4 < b < 5
(The second less than sign is less than or equal to)
6 0
3 years ago
According to the area model, what's the probability of no pumpkins?
Ray Of Light [21]

Answer:

good luck bro I believe in u

6 0
3 years ago
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