Margaret Grove HELP. (1 Viewer)

[posh bitch]

I need help with Questions 13 & 14 in Exercise 6.3
I've also uploaded an image for those who dont have the textbook

any help would be appreciated thanks.

 

[gr_111]

for Q13 set up an equation like and use the conditions t=0, M=A and then t=1600, M=A/2 to find k, which you can then use to work out the percentage. Just be careful with what percentage has decomposed vs what percentage is remaining.

 

[posh bitch]

omg you are a legend ! thank you so much xx

 

[posh bitch]

sorry but how would you question 14 (c)
im not sure on what the questionis asking