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denis23 [38]
3 years ago
7

A radioactive substance has a decay rate of 2.3% per year. What is its half life? Give your answer correct to 2 decimal places.

Mathematics
1 answer:
tatiyna3 years ago
8 0
Please send a message me a picture of the problem and I think it is .023
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The hawks lost eighty three games they won 14 more than they lost. how many games did they win?
Daniel [21]
The hawks won 97 games 
5 0
3 years ago
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I am stuck please help!
olga2289 [7]

Answer:

5x - 63 = 6

Step-by-step explanation:

Okay, first step, let's get all fractions having a common denominator, to do this, multiply 2/3 by 3 to get 6/9. Now, we have 5/9x-7=6/9. To make these into whole numbers, we can multiply the whole equation by the denominator (9). 5/9x multiplied by 9 is 5. 7 multiplied by 9 is 63. 6/9 multiplied by 9 is 6. Now we have 5x-63=6. If I were to simplify the equation, it would require decimals, so I'll leave it at this, but the equation simplified is x=13.8.

7 0
3 years ago
You have a shelf that holds 25 1/2 pounds. What is the most number of 1 1/4 pound books that the shelf can hold?​
patriot [66]

Answer:

20 books

Step-by-step explanation:

given that the shelf can hold 25 1/2 lbs (i.e 25.5 lbs), and that each book weighs 1 1/4 ln (i.e 1.25 lbs)

number of books which the shelf can hold

= weight that the shelf can hold ÷ weight of each book

= 25.5 ÷ 1.25

= 20.4 books

because having 0.4 of a book (i.e part of a book) would not be very feasable, we have to round the number of books down to the nearest whole number)

20.4 books rounded down to nearest whole number = 20 books (answer)

5 0
2 years ago
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Das has 3/4 of bottle of water.He drinks 3/8 of the bottle.How much of the bottle dose he have left?
sesenic [268]

Answer:

3/8

Step-by-step explanation

Convert 3/4 to 6/8 to make it easier subract since this problem asks how much he has left.

So 6/8-3/8=3/8

4 0
3 years ago
What is the answer for | 3x - 2 | = 8 and | x + 1 | = 1
Umnica [9.8K]
X = -2

3 x -2 = -6
-6 -2= -8
|-8| = 8

-2 + 1= -1
|-1|=1
8 0
3 years ago
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