Chapter 9 - XYZ Custom Plus
Chapter 9 - XYZ Custom Plus
Chapter 9 - XYZ Custom Plus
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9.5 Problem Set<br />
557<br />
Coin Problems<br />
37. Mary has $2.20 in dimes and nickels. If she has 10<br />
more dimes than nickels, how many of each coin does<br />
she have?<br />
38. Bob has $1.65 in dimes and nickels. If he has 9 more<br />
nickels than dimes, how many of each coin does he<br />
have?<br />
39. Suppose you have $9.60 in dimes and quarters. How<br />
many of each coin do you have if you have twice as<br />
many quarters as dimes?<br />
40. A collection of dimes and quarters has a total value of<br />
$2.75. If there are 3 times as many dimes as quarters,<br />
how many of each coin is in the collection?<br />
Miscellaneous Problems<br />
41. Magic Square The sum of the numbers in each row,<br />
each column, and each diagonal of the square below is<br />
15. Use this fact, along with the information in the first<br />
column of the square, to write an equation containing<br />
the variable x, then solve the equation to find x. Next,<br />
write and solve equations that will give you y and z.<br />
x 1 y<br />
3 5 7<br />
4 z 2<br />
42. Magic Square The sum of the numbers in each row,<br />
each column, and each diagonal of the square below is<br />
3. Use this fact, along with the information in the second<br />
row of the square, to write an equation containing<br />
the variable a, then solve the equation to find a. Next,<br />
write and solve an equation that will allow you to find<br />
the value of b. Next, write and solve equations that will<br />
give you c and d.<br />
4 d b<br />
a 1 3<br />
0 c 22<br />
43. Wages JoAnn works in the publicity office at the state<br />
university. She is paid $14 an hour for the first 35 hours<br />
she works each week and $21 an hour for every hour<br />
after that. If she makes $574 one week, how many<br />
hours did she work?<br />
44. Ticket Sales Stacey is selling tickets to the school play.<br />
The tickets are $6 for adults and $4 for children. She<br />
sells twice as many adult tickets as children’s tickets<br />
and brings in a total of $112. How many of each kind of<br />
ticket did she sell?<br />
45. Cars The chart shows the fastest cars in America. The<br />
maximum speed of an Evans 487 is twice the sum of<br />
the speed of a trucker and 45 miles per hour. What is<br />
the speed of the trucker?<br />
46. Skyscrapers The chart shows the heights of the three<br />
tallest buildings in the world. The Sears Tower is 80<br />
feet less than 5 times the height of the Statue of Liberty.<br />
What is the height of the Statue of Liberty?<br />
Ready for the Races<br />
Ford GT 205 mph<br />
Evans 487 210 mph<br />
Saleen S7 Twin Turbo 260 mph<br />
SSC Ultimate Aero 273 mph<br />
Such Great Heights<br />
Taipei 101<br />
Taipei, Taiwan<br />
Petronas Tower 1 & 2<br />
Kuala Lumpur, Malaysia<br />
1,483 ft<br />
1,670 ft Sears Tower<br />
Chicago, USA<br />
1,450 ft<br />
Source: Forbes.com<br />
Source: www.tenmojo.com
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