Alarge mixing tank currently contains 225 225 gallons of water, into which 5 5 pounds of sugar have been mixed. a tap will open, pouring 20 20 gallons of water per minute into the tank at the same time sugar is poured into the tank at a rate of 4 4 pounds per minute. find the concentration (pounder per gallon) of sugar in the tank after t t minutes.

What are the interpretations of the line 3x - 15y = 60? x-intercept y-interception a: x 20 - y -4 b: x 5 - y 20 c: x -3 - y 15 d: x -4 - y 20

Carlos by 24 mi and ran 6 miles what is the ratio of the distance carlos ran to the distance he biked

The biologist has a second culture to examine. she knows that the population of the culture doubles every 15 minutes. after 1 hour and 15 minutes, her assistant found that 80,000 bacteria were present. a) what was the size of the initial population? b) predict the size of the culture at t=3 hours. what was the size of the population at 40 minutes? explain and justify your answers. c) create a graph of the population as a function of time. find an equation that can be used to predict the size of the population at any time t. d) examine the rate at which the bacteria culture is growing. how fast is the culture growing after 1 hour? after 1.5 hours? after 2 hours? use a time interval of h = 0.01 hours to estimate these rates. interpret these rates in terms of the context of the problem situation. how do these three rates compare?