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3 years ago

Suppose you have 60 kg of a radioactive material that decays 50% of its mass every

Mathematics

2 answers:

amid [387]3 years ago

8 0

Year 1= 60 x .5 =30
Year 2=30 x .5 =15
Year 3=15 x .5 =7.5
Year 4=7.5 x .5 =3.75
The answer is 3.75

bija089 [108]3 years ago

7 0

Answer:

8.12 kg

Step-by-step explanation:

Suppose you have 60 kg of a radioactive material that decays 50% of its mass every year. How much material will you have left after 4 years?

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andriy [413]

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3 years ago

it was recently estimated that domestic vehicles out numberforegin vehicles by about six to five. if there are 2673 vehicles in

klio [65]

The question is an example of a ratio problem. This implies that

$\begin{gathered} \text{Domestic vehicles ratio=6} \\ \text{Foreign vehicles ratio=5} \\ Sum\text{ of vehicles ratio =5+6=11} \end{gathered}$

Therefore, le the number of domestic vehicles be x. We can say that;

$\begin{gathered} \frac{6}{11}=\frac{x}{2673} \\ 11x=16038 \\ x=\frac{16038}{11} \\ x=1458 \end{gathered}$

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1 year ago

Which fraction is not equivelent to 25%<br> A.1/4 B.5/20<br> C. .25 D. 2/5

Hunter-Best [27]

Answer:

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Step-by-step explanation:

p% = p/100 so that

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3 years ago

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lys-0071 [83]

Answer:

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3 years ago

Which operation should you perform last in the expression 12 × 4^2?

drek231 [11]

Answer:

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Step-by-step explanation:

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3 years ago