So a)
it has 4 faces
first=30
second=30
third=20
fourth=20
b)surface area=120
We are given the electricity cost as 5 cents per
kilowatt-hour. We should notice that the cost is actually in the form of:
electrical cost = cost / (power * time)
Therefore to get a number which is in terms of cents
alone (cost alone), therefore we should multiply the given electrical cost
value with the power and time.
Power = 80 watt = 0.08 kilowatt
Time = 24 hours
Therefore the cost is calculated as:
cost = electrical cost * power * time
cost = [5 cents / (kilowatt hour)] (0.08 kilowatt) (24
hour)
cost = 9.6 cents
Answer:
<span>9.6 cents</span>
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➷ volume = length x width x height
In a cube, all sides are the same size
Substitute in the values:
volume = 6 x 6 x 6
Solve:
volume =
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Answer
b. is 568 oz
c.it would take 3 bottles for 51 oz
Step-by-step explanation:
17*51=568
51/17=3