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Ronch [10]
3 years ago
5

The half life of a particular radioactive substance is 1 year. If yiu started with 50 grams of this substance, how much of it wo

uld remain after 3 years.
Mathematics
1 answer:
Alenkinab [10]3 years ago
5 0

Answer:

Remaining amount is 6.25 grams

Step-by-step explanation:

I had the same question not to long ago

one year what you would be left with is 50/2 which is 25 gram

second year, you would be left with 50/4 which is 12.5

third year what's left is 50/8 i.e 6.25

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4 years ago
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3 years ago
Read 2 more answers
Sandy borrowed 6709 R.O from a bank to buy a piece of land. If the bank charges 12 1/3 % compounded each two months, what amount
enot [183]

Answer:

she is paying back 9112.5 R.O

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Step-by-step explanation:

To find the amount, we use the compound interest formula.

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n is the number of times interest is compounded. We have 15 2 months in 2 and a half years

t is the number of years = 2.5

Plugging these values, we have;

A = 6709(1 + 0.1233/15)^(15)(2.5)

A = 6709(1.0082)^(37.5)

A = 9112.95 R.O

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9112.95 - 6709 = 2403.95

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3 years ago
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