Margo found that 3x741 = 2,223. How could you use mental math to find the product of 6 x 741?
2 answers:
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Answer:
It takes 27 minutes for the element to decay to 35 grams
Step-by-step explanation:
Given:
Initial amount = 790 grams
Final amount = 35 grams
Half life = 6 minutes
To find:
Time taken for the element to reduce into 35 grams = ?
Solutions
Time taken =
On substituting the values given, Time taken
=
=
=
= 26.97
= 27 minutes