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Section 7.2 Problems 2006

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according to figures provided by the Air Transport Association of America, the Boeing B747-400 and the McDonnell Douglas L1011-100/200 arte among the air carriers with maximum passenger seating. The Boeing seats 110 more passengers than the McDonnell Douglas, and together the two models seat 696 passengers. Write out problem solving steps 1-6 as in Exercise 21 to find the seating capacity of each model.(let x = the number of Boeing seats.) Answer:number of Boeing seats is 403, number of McDonell Douglass seats is 293

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13.5-.3=13.2, 13.2/2=6.6, 6.6+.3=6.9, 6.6 billion- General Electrics, 6.9 billion- General Motors

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in the 1996 presidental elections, Bill Clinton and BoB Dole together recived 538 electoral votes. Clinton received 220 more votes than dole. how many votes did each candidate receive?

538/2=269 269-110= 159 269+110= 379 Clinton has 379 votes Dole has 159 Votes

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From the graph, what seems to be the trend for video rentals versus video sales?

Sales continued to increase while there was a big jump in the number of rentals. But in the past 5 years (between 1995 and 2000), the number of rentals have stayed the same.

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50

Roma Sherry found some coins while looking under her sofa pillows. there were equal of nickels and quarters, and twice as many half dollers as quarters. if she found $2.60 in all, how many of each denomination of coin did she find?

  1. Nickels=# Quarters
  2. Quarters x2=# 1/2 Dollars

Total=$2.60

2n= 10c 2q= 50c 4 1/2d= $2 =$2.60

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number of people seated on floor = f

number of people seated on balcony = b

40f + 28b = 20800

f + b =550

f = 550 - b

40(550-b) + 28b = 20800

22000 - 40b + 28b = -1200

-12b = -1200

12b = 1200

b = 100

f + b = 550

f + 100 = 550

f = 550 - 100

f = 450

number of balcony seats = 100

number of floor seats = 450

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