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>
Answer: Its surface covers 1400 cm²
Explanation:
Since the length of painting = 40 cm
Breadth of painting = 35 cm
Since we know that area of rectangle is product of dimensions.
∴ Area of painting = length × breadth
= 40 cm × 35 cm
= 1400 cm²
∴ Its surface cover 1400 cm².
Answer:
BK=39/7
Step-by-step explanation:
because NQZ~CBK
so BK/QZ = TZ/KF
(4x+1)/(2x+7) = 27/45 = 3/5
5(4x+1) = 3(2x+7)
20x + 5 = 6x + 21
14x = 16
x = 8/7
=> BK = 4(8/7)+1 = 39/7
L+L will become 2L. To find only one L, you must divide both sides by 2.
