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OLEGan [10]
3 years ago
12

The half-life of a radioactive substance is 11 days. After 12 days a sample of the substance has been reduced

Mathematics
1 answer:
sergiy2304 [10]3 years ago
8 0
The mass is 48.3 that’s it
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Answer:

#a. $80

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Step-by-step explanation:

We are given;

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We are required to determine the amount of simple interest earned and the amount or balance in the account after 1 year.

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To calculate simple interest we use the formula;

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Therefore;

I = (1600 × 5 × 1) ÷ 100

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Therefore, simple interest earned is $80

#b. Balance of the account (Amount accrued)

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A = P + I , where A is the amount accrued, P is the principal and I is the simple interest earned.

Therefore;

Account balance = $1600 + $80

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