SAT Math Practice Question #36162 - SATify | SATify
#36162
applications
functions
linear
medium
60 sec
A new smartphone battery starts with a 100% charge. After 3 hours of continuous use, the battery charge drops to 70%. If the battery charge decreases at a constant rate, what is the rate of decrease, in percentage points per hour?
• 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.
