Tank A contains 35 gallons of water and is increasing at a rate of 5 gallons per minute. Tank B contains 100 gallons of water and is decreasing at a rate of 8 gallons per minute. In how many minutes will the tanks contain the same amount of water? ((I know the answer is 5 minutes, but how would I solve it?)

Question

Tank A contains 35 gallons of water and is increasing at a rate of 5 gallons per minute.  Tank B contains 100 gallons of water and is decreasing at a rate of 8 gallons per minute.  In how many minutes will the tanks contain the same amount of water?  ((I know the answer is 5 minutes, but how would I solve it?)

anonymous · Answer

35/5 = 100/8. I do believe that is the set up.