1. The average price for a music CD is $15.50. Depending on where you shop, the price may vary by as much as $3.00. Write and absolute value inequality describing the possible prices of musin CD's.
2. Your car averages 35 miles per gallon on the highway. The actual mileage varies from the average by 5 miles per gallon. Write an absolute value inequality that shows the range for the milage your car gets.
2007-05-18 07:53:20 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Take 15.50 and subtract half of 3.00 or 1.5 from it and also add half of 3.00 to it or 1.50. so the price range is 14 to 17 dollars.
30 to 40 miles per gallon.
2007-05-18 08:03:20 · answer #1 · answered by perryinjax 3 · 0⤊ 0⤋
A.) a finished of 456 tickets have been bought, so a + s = 456. the quantity of money produced from each form of fee ticket is its fee extra advantageous by using what share have been bought. subsequently, the quantity of money produced from the person tickets on my own is $3.50 * a = 3.5a money. Likewise, the quantity of money produced from the pupil tickets on my own is $a million * s = s money. the finished fee ticket sales equals $1131, so 3.5a + s = 1131. subsequently, your equipment of equations is: a + s = 456 3.5a + s = 1131 B.) Multiply the 1st equation by using -a million so that is -a - s = -456. Now upload this equation to the 2d equation to remedy for a by using removing s from the ensuing equation: (3.5a + s = 1131) + (-a - s = -456) = (2.5a = 675) 2.5a = 675 (divide the two facets by using 2.5) a = 270 And you may now remedy for s. a + s = 456 (replace 270 for a) 270 + s = 456 (subtract 270 from the two facets) s = 186 answer: 270 person tickets and 186 pupil tickets
2016-12-29 11:35:52 · answer #2 · answered by ? 3 · 0⤊ 0⤋
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2015-10-07 05:29:28
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answer #3
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answered by Morgan 1
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