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
144/145
Convert any mixed numbers to fractions
Then your initial equation becomes
48/5 divided by 29/3
Answer: 880
Explanation: 132/0.15 = 880 sry it wasnt thorough explanation i dont have time
-0.75 is a rational number because it can be expressed as the fraction -3/4 and it is an integer