In an effort to save the environment, Stacey makes a classroom presentation about how many gallons of water a dripping faucet ca
n waste. If 15 gallons are wasted in three days, and 30 gallons are wasted in six days, what is the rate of change of gallons wasted per day?
1 answer:
(3,15)(6,30)
slope = (30 - 15) / (6 - 3) = 15/3 = 5...so 5 gallons wasted per day
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