Answer: Amount that they paid in 2007 is 1.01 millions.
Step-by-step explanation:
Since we have given that
Number of millions paid last month = $1.29 millions
According to question, it was 26% above what they paid in 2007.
Let the amount paid in 2007 be x
So, our equation becomes,
Hence, Amount that they paid in 2007 is 1.01 millions.
Answer: The refrigerator cost in this month is $4.5 approximately.
Step-by-step explanation:
Since we have given that
Amount of watt of electric power = 320 W
Number of days = 30
Unit cost of electricity = $0.13/Kwh
Hold factor =
Number of hours in a month = 24
So, the refrigerator cost in this month would be
Hence, the refrigerator cost in this month is $4.5 approximately.