Water flows back and forth between a small and large tank. When water is moving into a tank the flow rate is positive, and when water is moving from a tank the flow rate is negative. Each tank begins with 250 gallons of water. The flow rate for the large tank is recorded as –6 gallons per minute. After a period of 25 minutes, which integer represents the amount of water left in the large tank? A. -400 B. -100 C. 100 D. 400 HELP PLEASE

C. 100

Step-by-step explanation:

If  the large tank is flowing at a constant rate of  -6 per minute then we have to know that the water is moving from the tank. So is asking how many water will be left in the tank after 25 minutes.

You could use the equation

y = -6x  + 250  where y is the amount of water left in the tank and x is the number of minutes.

So if x is 25 then plot it in and solve for y.

y = -6(25) +250

y = -150 +250

y= 100  

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