SAT Math Practice Question #31224 - SATify | SATify
#31224
modeling
applications
algebra
functions
exponential
word problem
medium
75 sec
A radioactive substance has a half-life of 5 days. If a sample initially contains 800 grams of the substance, how many grams will remain after 20 days?
(Grid-in your answer.)
• 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.
