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inn [45]
2 years ago
13

the half-life of isotope X is 2.0 years. How many years would it take for a 4.0mg sample of X to decay and have only 0.50 mg of

it remain
Mathematics
1 answer:
shepuryov [24]2 years ago
4 0

After 2.0 years, the 4.0 mg sample decays to 2.0 mg.

After another 2.0 years (total 4.0 years), the 2.0 mg sample decays to 1.0 mg.

And after another 2.0 years (total 6.0 years), the 1.0 mg sample decays to 0.50 mg.

So it takes 6.0 years for 4.0 mg to decay to 0.50 mg.

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aniked [119]

yes!! glad that you support this! keep your head up and keep on smiling! <3

5 0
3 years ago
Plzzz help meeee!! I dont know this just helpin a friend!
Dennis_Churaev [7]

okay... THE ANS IS 5/35 IS THE RIGHT ONE

7 0
3 years ago
Help!!! What’s the approximate sector area
-BARSIC- [3]

Answer:

c

Step-by-step explanation:

bc itysv coo;

8 0
3 years ago
The circumference of a circle is 32π. What is the diameter of this circle?
lawyer [7]
C = 2 (pi) r 

32 (pi) = c

32 (pi)= 2 (pi) r 

r= 16 

2r = d 
 d= 32

hope that helps
4 0
3 years ago
The table below shows the amounts of lemon juice and sugar used in each container of lemonade. The ratio of lemon juice to sugar
stira [4]
1/2 : 1
2 : 4
3 : 6
Notice that every ratio consists of a number and double the number.

For 1/2 cup lemon juice, use 1 cup sugar.
The amount of sugar is twice the amount of lemon juice.

The ratio is 1:2
Since you are told the ratio is 1:r, that means r is 2.

The unit rate is 2 cups sugar per cup of lemon juice.
5 0
3 years ago
Read 2 more answers
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