These easy questions always seem to trip me up on time:
A rainstorm increased the amount of water stored in State J reservoirs from 124 billion gallons to 138 billion gallons. If the storm increased the amount of water in the reservoirs to 82% of the total capacity, approximately how many billion gallons of water were the reservoirs short of total capacity prior to the storm?
Very easy getting to 0.82t=138, but does anyone have suggestions on how to quickly do the math for 138/0.82?
The answer choices are usually close enough to each other where you need to go through the long multiplication.
Any tips would be greatly appreciated. Thanks
A rainstorm increased the amount of water stored in State J reservoirs from 124 billion gallons to 138 billion gallons. If the storm increased the amount of water in the reservoirs to 82% of the total capacity, approximately how many billion gallons of water were the reservoirs short of total capacity prior to the storm?
Very easy getting to 0.82t=138, but does anyone have suggestions on how to quickly do the math for 138/0.82?
The answer choices are usually close enough to each other where you need to go through the long multiplication.
Any tips would be greatly appreciated. Thanks
