SAT Math Practice Question #32127 - SATify | SATify
#32127
algebra
modeling
word problem
exponential
functions
easy
30 sec
The amount of a radioactive substance remaining, in grams, after t years is given by the function A(t)=100(0.5)15t. How many years 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.
