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Tasya [4]
3 years ago
5

If 50 grams of a radioactive substance decomposed to 42 grams in 2 years, then, to the nearest gram, the amount left after 5 yea

rs is
30 grams

32 grams

22 grams

40 grams

28 grams
Mathematics
1 answer:
Inga [223]3 years ago
3 0

Answer:

30 grams

Step-by-step explanation:

50-42=8

8÷2=4

4=1 year

5×4=20

50-20=30

Hope u can understant

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Shapes A and B are similar.
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From the figure, we have the following corresponding sides

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2 years ago
The width of a DVD case is the same as the width of a
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12m

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3 years ago
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