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Burka [1]
3 years ago
11

You have 192 grams of a radioactive kind of iodine. How much will be left

Mathematics
1 answer:
m_a_m_a [10]3 years ago
8 0

Answer:

192/2= 96 g after 7h

96/2=48 g after 14h

48/2= 24 g after 21h

<h2>24/2= 12 g after 28h </h2>
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How many pairs of whole numbers have a sum of 99
alexandr402 [8]

With the sum of 99, we will get 50 pairs whole numbers. Why?

Let’s start with

0+ 99

1 + 98

2 + 97

3 + 96

4 + 95

5 + 94

6 + 93

7 + 92

8 + 91

9 + 90

10 + 89

………

……..

43 + 49

44 + 50


Therefore, if you’re going to count all pairs of whole number, you will get 50 pairs of whole number with the sum of 99.

Hope this helps!

4 0
3 years ago
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A cup of coffee contains 130mg of caffeine. If caffeine is eliminated from the body at a rate of 11% per hour, how long will it
uysha [10]
It will take approx.65 of caffeine remaining after 6 hours
4 0
3 years ago
Jumoke is 11years older than amina. in 5 years time, jumoke will be twice as old as amina. Find amina present age​
ANEK [815]

Answer: 3

Step-by-step explanation:

In 5 years, Jumoke will be 16. 16 divided by 2 is 8. Amina will be 8 in 5 years. If we subtract 5 from 8, we see that Amina is 3 currently.

7 0
3 years ago
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What does being able to express numbers in equivalent forms allows you to do?
ss7ja [257]
<span>Being able to express numbers in its equivalent forms allows you to give more accurate and correct answers. By using equivalents forms you may find a simply and easier way to solve the given equation.
For example, in fraction, by simply expressing equivalent fractions with common denominator, you can easily subtract and add the given numbers in an easy way. There are a lot of numbers that are equivalent, and there are a lot of way to solve a single problem to get a correct answer.</span> 
3 0
3 years ago
I don’t understand this problem?
vekshin1

Since the two trapezoids are similar, you could solve by doing a proportion: 12/20=X/25

You should end up with an answer of 15 (B)

7 0
3 years ago
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