A bathtub is draining at a constant rate. After 2 minutes, it holds 30 gallons of water. 3 minutes later, it holds 12 gallons of
water. Write an equation that represents the number y of gallons of water in the tub after x minutes
1 answer:
Y = -18 x + 66.
Since the bathtub is draining at a constant rate, it can be modeled with equation y = mx + c ( m is the constant draining rate )
To find m, do 12 - 30 = 18
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