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Archy [21]
3 years ago
8

Sean is conducting an experiment with an isotope of a particular element that has a half life of 4 hours. He begins with a sampl

e of the isotope with a mass of 92 grams. He then measures the mass of the object every hour. What is the approximate mass of the sample after 20 hours. Choices are: A: 2.875 B:2,944 C:1.4375 D:0.0313
Mathematics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

/??

Step-by-step explanation:

You might be interested in
How can you find the whole when you know part and the percent.
Usimov [2.4K]

An example should make this clear.

If  $50  is 40%   what is the value of the whole amount?

Answer:-  Whole amount = 100^%

By proportion this =  (100/ 40) * 50

= 2.5 * 50

= $125    (answer)


4 0
3 years ago
Help me please please I beg
alexdok [17]

Answer:

cm

Step-by-step explanation:

if using centimeters to determine the perimeter then it's just cm.

If you're using centimeters to determine area it would be cm^2.

If you're using centimeters to determine volume it would be cm^3.

I hope this helps you. Have a blessed day.

:);)

7 0
2 years ago
out of 45 times at bat, Raul got 19 hits.Find Rauls batting average as a decimal rounded tothe nearst thousandth.
kati45 [8]
19/45=0.422222222........
Therefore rounded to the nearest thousandth his batting average is 0.422
3 0
3 years ago
Julio says if you subtract 17 from my number and multiply the difference by - 2 the result is gonna be negative 12 what was Juli
Paha777 [63]

Answer:

23

Step-by-step explanation:

Taking an algebraic approach

let the number be n, then (n - 17) is 17 subtracted from number and

- 2(n - 17) = - 12 ( divide both sides by - 2 )

n - 17 = 6 ( add 17 to both sides )

n = 23

Thus Julio's number was 23

6 0
3 years ago
What is the formula to find the rate of discount when M.P and S.P after discount is given.
cupoosta [38]

Answer:

Selling Price = M.P. – Discount = 100 – 5 = Rs. 95. If S.P. is Rs 95, then M.P. is Rs. 100.

7 0
3 years ago
Read 2 more answers
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