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ivolga24 [154]
3 years ago
10

The half life of a radioactive substance is 10 years. If 64 grams are placed in a

Mathematics
1 answer:
geniusboy [140]3 years ago
7 0

Answer:

2 grams

Step-by-step explanation:

50 years is 5 half lives as 1 half life is 10 years.

64 divide 2 = 32-1 half life

32 divide 2 =16-2nd half life

16 divide 2 = 8-3rd half life

8 divide 2 = 4-4th half life

4 divide 2 = 2-5th half life

This means we will have 2 grams left of the radioactive substance after 50 years.

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iogann1982 [59]

Answer:

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Step-by-step explanation:

1/6(a+12)=-4

1) Distribute <u>1/6</u> to a and 12:

1/6a+2=-4

2) Subtract 2 from both sides:

1/6a=-6

3) Multiply both sides by the reciprocal of 1/6: (6/1)

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Let me know if you have any confusion on how I reached the solution :)

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Step-by-step explanation:

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The answer to this question is B
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