Answer:
answer and explanation in the pic above
hope it helps
y = -7.3x + 39.7
The first thing we must do for this case is to make use of the given equation and replace the value of y:
17.8 = -7.3x + 39.7
Now we clear x:
7.3x = 39.7-17.8
x = (39.7-17.8) / (7.3)
x = 3
Answer:
the tub will have 17.8 gallons of water remaining after 3 minutes
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Answer: 4.64805 pounds of CO₂ was produced
Step-by-step explanation:
Given that;
wattage = 4694 watt = 4694 /1000 = 4.694 kW
time in use t = 10hrs
CO₂ was produced = ?
Total Energy produced = wattage × time = 4.694 kW × 10hrs = 46.95 kWh
we know that 1 kWh produces 0.99 pounds of CO₂
so
46.95 kWh will produce ⇒ 46.95 kWh × 0.99 = 4.64805 pounds of CO₂
Therefore 4.64805 pounds of CO₂ was produced