3. Tank A has 35 gallons of water and is filling up at a rate of 5 gallons per minute. Tank B has 100 gallons of water and is draining at a rate of 8 gallons per minute. The system of equations y = 35 + 5x
can be used to represent this situation. In how many minutes will the tanks contain the same amount of
water, and how much water will that be ?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.