Posted: 3/9/2015 11:01:40 PM EDT
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The Holt family pays a monthly base charge of $12 for electricity plus 5 cents per kilowatt-hour. If they want to keep monthly electrical costs between $80 and $100, how many kilowatt-hours can they use each month to stay within their strict budget?
(a) Between 1600 and 2000 kilowatt-hours (b) Between 1333 and 1667 kilowatt-hours (c) Between 1840 and 2240 kilowatt-hours (d) between 1360 and 1760 kilowatt-hours |
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Quoted:
The Holt family pays a monthly base charge of $12 for electricity plus 5 cents per kilowatt-hour. If they want to keep monthly electrical costs between $80 and $100, how many kilowatt-hours can they use each month to stay within their strict budget? (a) Between 1600 and 2000 kilowatt-hours (b) Between 1333 and 1667 kilowatt-hours (c) Between 1840 and 2240 kilowatt-hours (d) between 1360 and 1760 kilowatt-hours T = 12 + .05x, where 80 < 5 < 100 Solving for x such that T> 80, (80 -12) / .05 = 1360 > x Solving for x such that T < 100, (100 - 12) / .05 = 1760 < x Answer is (d) That's some old school stuff. I here that Common Core has algebra problems like this: * George, or "HW" as he is known on the street, is an evil thug drug dealer who buys coke that has been stepped on at least 3 times to make some rock, but still sells at the same price as the premium stuff. How long can he get away with this bullshit before someone puts a cap in his ass? (a) Shit, I already capped his ass 'cuz he's a creepy ass cracka (b) Can't touch him 'cuz he's tight with the five o. (c) Ain't no thang, MF gots to get paid! (d) I'm running low, what corner is he at? |