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ziro4ka [17]
2 years ago
6

Element X is a radioactive isotope such that every 81 years, its mass decreases by half. Given that the initial mass of a sample

of Element X is 1800 grams, how much of the element would remain after 28 years, to the nearest whole number?
Mathematics
1 answer:
Ksenya-84 [330]2 years ago
3 0

Answer:

1426

Step-by-step explanation:

this question has been asked before and answered incorrectly but people corrected them in the comments.

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Evaluate the summation of negative 5 n minus 1, from n equals 3 to 12..
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The summation of negative 5 n minus 1, from n equals 3 to 12 can be expressed as

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Work the following problem
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Option B is the correct answer.

Step-by-step explanation:

Given

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3 years ago
The ratio 5:20 written as a fraction​
iogann1982 [59]

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4 0
3 years ago
Read 2 more answers
Nathan went shopping for a new camera because of a sale. The store was offering a 40% discount. If the price on the tag was $35,
tia_tia [17]

Answer:

The price after the discount but before the tax is $21

Step-by-step explanation:

Here, we are told there is a price off of 40% on an item that costs $35.

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We proceed by finding 40% of $35

Mathematically, that would be;

40/100 * 35 = $14

The price of the item before the tax is thus;

35-14 = $21

4 0
3 years ago
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