Answer:
22.38 g of silicone-32 will be present in 300 years.
Step-by-step explanation:
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by
                                            
where,
 = quantity of the substance remaining
 = quantity of the substance remaining
 = initial quantity of the substance
 = initial quantity of the substance
 = time elapsed
 = time elapsed
 = half life of the substance
 = half life of the substance
From the information given we know:
- The initial quantity of silicone-32 is 30 g.
- The time elapsed is 300 years.
- The half life of silicone-32 is 710 years.
So, to find the quantity of silicone-32 remaining we apply the above equation

22.38 g of silicone-32 will be present in 300 years.
 
        
             
        
        
        
Answer:
y=5x+25
y=5(12)+25
y=85
Step-by-step explanation:
 
        
             
        
        
        
3(5)+15= 30 
because BIDMAS so we would multiply 3 by 5 then add the answer which would be 15 to 15 and we would get 30.
        
                    
             
        
        
        
Answer:
1/2
Step-by-step explanation: