Lee watches tv 3hours per day. Lee tv consumes 200 watts when on. Electricity cost 12 cents 1 kilowatt-hour how much does Lee's
2 answers:
Answer:
The cost of operating a 200-Watt TV 3 hours per day for 30 days is 2.16 dollars.
Step-by-step explanation:
This problem ask us for the total cost associated with electricity consumption in a period of time. Hence, the total cost of energy is obtained by making appropriate conversions, that is:
Cost = Energy consumed x Time x Unit cost
The cost of operating a 200-Watt TV 3 hours per day for 30 days is 2.16 dollars.
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26.25 gallons
Step-by-step explanation:
21000 = 800x
x = 26.25 gallons
Answer:
Step-by-step explanation:
Given line is,
y=-4x+3
when, x=-1 , y=-4(-1)+3=4+3=7
when, x=0 , y=-4(0)+3=0+3=3
when, x=1 , y=-4(1)+3=-4+3=-1
So, we got the points (-1,7) , (0,3) , (1,-1)
Now, putting the points in the graph and adding them , we will get the graph of given line.
Please check image for the graph.
Now for the second part-
The graph is positive means- it will be above the x-axis, that is y value will be positive.
From the graph we can see that, if x<0 , then y is positive.
So, any value of x which is less than 0 , will give the positive graph here.
