SAT Math Practice Question #32103 - SATify | SATify
#32103
linear
arithmetic
proportion
ratio
rate
word problem
medium
60 sec
A battery starts with a full charge of 100%. When in use, its charge decreases at a constant rate of 2.5% per hour. If the battery's charge is now 35%, for how many hours has it been in use?
• 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.
