SAT Math Practice Question #34628 - SATify | SATify
#34628
exponential
functions
medium
60 sec
A certain radioactive substance decays such that its mass decreases by 20% every hour. If the initial mass of the substance was 200 grams, what will be the mass, in grams, after 3 hours?
• 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.
