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Suppose that the water level of a river is 50 feet and that it is receding at a rate of 0.75 foot
per day. Write an equation for the water level,, after days. In how many days will the water
level be 30 feet?

Respuesta :

Y=-0.75x+50

Now put in 30 for y:
30=-0.75x+50
-20=-0.75x
X=26.6666
So in 26/27 days
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