Q: Emily’s last water bill listed a previous reading of 7,123
Emily’s last water bill listed a previous reading of 7,123 ccf and a present reading of 7,171 ccf. Her water company charges $0.73 per ccf of water. What should Emily have been charged on her water bi...
See AnswerQ: Alex purchases x dollars’ worth of stock on his broker’s advice and
Alex purchases x dollars’ worth of stock on his broker’s advice and pays his broker a 1% broker fee. The value of the shares falls to y dollars years later, and Alex uses a broker who charges 1.25% co...
See AnswerQ: What is the meter reading, in ccf, indicated by each
What is the meter reading, in ccf, indicated by each of the gas meters shown? a. b. c. d.
See AnswerQ: Bill Heckle’s last electric bill is shown below. /
Bill Heckle’s last electric bill is shown below. a. What was the previous reading? b. What is the present reading? c. How many kilowatt-hours of electricity did Bill use during t...
See AnswerQ: Home heating oil is sold by the gallon. Last winter,
Home heating oil is sold by the gallon. Last winter, the Romano family used 370 gallons of oil at a price of $2.56 per gallon. If the price increases 9% next year, what will their approximate heating...
See AnswerQ: The PA system at North High School requires 400 watts when it
The PA system at North High School requires 400 watts when it is switched on. How much would it cost to run for 3 hours, at a cost of $0.10 per kilo watt hour? Round to the nearest cent.
See AnswerQ: The Zwerling family installed central air conditioning in their house this summer
The Zwerling family installed central air conditioning in their house this summer. They are comparing the electric bills of this summer and last summer. See the data in the table. a. What was the t...
See AnswerQ: Last winter, Anne was charged $838.35 for 9
Last winter, Anne was charged $838.35 for 9,315 kWh of electricity. What did her company charge per kilowatt-hour of electricity?
See AnswerQ: David is driving on the highway at the legal speed limit of
David is driving on the highway at the legal speed limit of 70 mi/h. He notices that there is an accident up ahead approximately 200 feet away. His reaction time is approximately ¾ of a second. Is he...
See AnswerQ: A certain appliance requires 225 watts when it is switched on.
A certain appliance requires 225 watts when it is switched on. How much would it cost to run for m minutes, at a cost of d dollars per kilowatt-hour? Express your answer algebraically.
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