Chapter 9 - XYZ Custom Plus
Chapter 9 - XYZ Custom Plus
Chapter 9 - XYZ Custom Plus
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9.3 Problem Set<br />
537<br />
Find the value of x for each of the figures, given the perimeter.<br />
51. P 5 72<br />
52. P 5 96<br />
2x<br />
3x<br />
53. P 5 80<br />
54. P 5 64<br />
3x<br />
5x<br />
2x<br />
3x<br />
Applying the Concepts<br />
55. Cars The chart shows the fastest cars in America. To<br />
convert miles per hour to feet per second we use the<br />
formula y 5 } 15 }x where x is the car’s speed in feet per<br />
22<br />
second and y is the speed in miles per hour. Find the<br />
speed of the Ford GT in feet per second. Round to the<br />
nearest tenth.<br />
56. Mountains The map shows the heights of the tallest<br />
mountains in the world. To convert the heights of the<br />
mountains into miles, we use the formula y 5 5,280x,<br />
where y is in feet and x is in miles. Find the height of K2<br />
in miles. Round to the nearest tenth of a mile.<br />
Ready for the Races<br />
The Greatest Heights<br />
Ford GT 205 mph<br />
Evans 487 210 mph<br />
K2 28,238 ft<br />
Mount Everest 29,035 ft<br />
Kangchenjunga 28,208 ft<br />
Saleen S7 Twin Turbo 260 mph<br />
SSC Ultimate Aero 273 mph<br />
PAKISTAN<br />
NEPAL<br />
CHINA<br />
Source: Forbes.com<br />
INDIA<br />
Source: Forrester Research, 2005
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