There is a special sale on engine oil. If you purchase more than one 12-quart case, you will receive a 5 percent discount. If you purchase six or more cases, you will receive a 10 percent discount. You have two vehicles that require an oil change every 4,000 miles. Vehicle #1 requires four quarts per oil change plus one additional quart when you also change the oil filter. Vehicle #2 requires five quarts per change plus one quart whenever the filter is changed. Each year your family drives vehicle #1 about 16,000 miles and vehicle #2 about 24,000 miles. You change the oil filter every other time the oil is changed. The normal price for oil is $22.49 per case. Oil filters cost $4.39 each.
What will be the discount for a one-year supply of oil for both vehicles?
Fill in the blank(s) with the appropriate word(s).
5%
You might also like to view...
What are several important things to remember in housing rabbits?
What will be an ideal response?
A) How much shaft work is produced in the turbine (per kg of water?) B) What is the actual physical state of the material leaving the turbine? (If a superheated vapor, give its temperature, and if a liquid-vapor mixture, give its quality.) C) How much heat is removed in the condenser (per kg of water?) D) What is the overall thermal efficiency of the complete cycle? E) What is the Carnot efficiency of a heat engine operating with a heat source at T=350 ?C and a heat sink at T=25 ?C?
A ship is powered by a heat engine, which operates on the following cycle: • Sub-cooled liquid water at P=50 bar enters a boiler. The effluent from the boiler is steam at T=350 ?C and P=50 bar. • The steam enters a turbine that has an efficiency of 80%. The effluent from the turbine has P=1 bar. • The turbine effluent enters a condenser and is cooled into a saturated liquid at P=1 bar. • The liquid water is pumped up to P=50 bar and returned to the boiler as sub-cooled liquid.
A vehicle battery is consistently low on voltage. Technician A says to disconnect the battery with the engine running to test for alternator output. Technician B says that a loose alternator belt may cause this problem. Who is right?
A) A only B) B only C) Both A and B D) Neither A nor B
The output pressure of a high-pressure oil pump used in residential oil-fired furnaces is:
A) 50 to 100 psi. B) 100 to 200 psi. C) Up to 1,000 psi. D) 200 to 450 psi.