Question

If a 300g sample of a substance has a half-life of 5 days, how much of the substance will decay after 22 days?

285.8 g

299.9 g

290.6 g

293.4 g

C?
R_scott
300 g [1 - (1/2)^(22/5)]


the 1st one looks good

Emily
Thank you!