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A manufacturer uses a tank to supply water to his machines while they are working. When the machines are on the tank loses 1.5 gallons of water an hour at the same time 1 gallon of water is pumped into the tank from a well. Write an equation that models the amount of water (w) in the tank for any hour (h) that the machines are on. The tank starts full with 150 gallons of water in it.

Respuesta :

As you analyze the equation, you need to simplify each sentences:
Machine on the tank loses - 1.5 gallons of water (an hour)
Pumped in the tank - 1 gallon (well)
= -1.5 + 1 = -.5 
Tank starts to full with - 150 gallons = +150
The best equation suited in the following is: w = -.5 + 150

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