SAT Math Practice Question #20452 - SATify | SATify
#20452
exponential
applications
medium
90 sec
Calculator OK
The function A(t)=2,000(0.5)80t gives the amount of a radioactive substance, in grams, remaining after t days. How much time, in days, does it take for the amount of the substance to be halved?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
