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makvit [3.9K]
3 years ago
14

How much of a radioactive kind of francium will be left after 10 minutes if the half-life is 5 minutes and you start with 96 gra

ms?
Mathematics
1 answer:
trapecia [35]3 years ago
6 0

Answer:

24

Step-by-step explanation:

96/2=48/2=24

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8/x=14/7 what does x equal
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Answer:

when you have two fractions that equal each other you want to solve by using cross multiply

What cross multiply is, is when you multiply diagonally so:

8/x=14/7

you would take 14*x and 8*7

14x=56 (you would then divide each side by 14)

x=4 (14/14=1, 56/14=4)

8/4=14/7

To check your work you could simplify

8/4=2

14/7=2

2=2, which is true

x=4

Hope this helps ;)

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Whitepunk [10]
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Step-by-step explanation:

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