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Alecsey [184]
3 years ago
15

You have 88 grams of a radioactive kind of actinium. How much will be left after 44 years if its half-life is 22 years?

Mathematics
1 answer:
mash [69]3 years ago
3 0

Answer:

22 grams

Step-by-step explanation:

loses 50% of it's mass per 22 years

so after 22 years the mass would be 44 grams

22 years later would leave 50% of 44 grams = 22 grams

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In the proportion x/5= 15/3 which number is equal to x in the proportion? ​
Ksivusya [100]
Answer:
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Step-by-step explanation:
We are given a word phrase:
In the proportion x over 5 equals 15 over 3 , which number is equal to x in the proportion?
So we will translate it to make it easier to solve.
Proportion x over 5 --->
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Solving this for x using cross multiplication:
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Step-by-step explanation:

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2 years ago
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stealth61 [152]

Answer:

Total cost of Theo's purchases in terms of k and p=2.49(k + p) + 5.99

Step-by-step explanation:

Cost of k key chain=$2.49

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Factorise

2.49 is common to both k and p

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Step-by-step explanation:

8 0
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