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Doss [256]
3 years ago
9

A sample of a radioactive element has a mass of 80 g. How much daughter materials are in the sample after two half-lives?

Mathematics
1 answer:
Sergio039 [100]3 years ago
4 0

Answer:

60g

Step-by-step explanation:

A sample of radioactive element has a mass that weighs 80g

The amount of life spent is two half-lives

This means that after two half lives, the number of daughter materials that would be available in the sample is 60g

Hence 60g of daughter cells would be available after two half lives

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Aleksandr [31]

Answer:

What was the result of civil wars breaking out in countries such as Honduras, Nicaragua, Guatemala, and El Salvador in the 1970s?

increased spread of famine

increased trade with other nations

the rebirth of enslavement

the deaths of many people

Step-by-step explanation:

5 0
3 years ago
I am driving from oakland california to erlanger kentucky. The distance is 2,364.6 miles. My gas tank gets 25 miles per gallon o
solong [7]

Answer:$1655.22

Step-by-step explanation:

The total distance from Oakland California to Erlanger Kentucky is 2,364.6 miles. The gas tank gets 25 miles per gallon on the highway. It means that total number of gallons required to cover the distance from Oakland California to Erlanger Kentucky would be

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5 0
3 years ago
In an apartment complex with 28 units, 19 of the renters keep a pet. What percentage does not keep a pet?
Aleks04 [339]

If 19 out of 28 renters keep a pet, there are 28-19 = 9 renters who don't keep a pet.

Whenever you have a subset of some set, and you want to know which percentage of the set the subset represents, you simply have to compute

\dfrac{\text{number of elements in the subset}}{\text{number of elements in the set}}\times 100

So, in your case, you're wondering what percentage of 28 does 9 represent. So, the formula becomes

\dfrac{9}{28}\times 100 = 0.32\overline{142857}\times 100 = 32.\overline{142857} \approx 32.14\%

6 0
2 years ago
Which strategy is the most appropriate strategy to solve 5x^2+30x ?
guapka [62]
B. Square root property
4 0
3 years ago
Can 3/8 be simplified eney more
AnnZ [28]
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3 years ago
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