Beginning Algebra, 11th Edition

CHAPTERS 1–5 Cumulative Review Exercises^357

CUMULATIVE REVIEW EXERCISES

CHAPTERS 1–5

Write each fraction in lowest terms.

3.A contractor installs sheds. Each requires of concrete. How much concrete would

be needed for 25 sheds?

4.A retailer has $34,000 invested in her business. She finds that last year she earned 5.4%

on this investment. How much did she earn?

5.List all positive integer factors of 45.

6.If and find the value of

Perform each indicated operation.

Decide which property justifies each statement.

9. 
   
   
   
   10. 11.Simplify the expression
   
   
   
   

Solve each equation.

16. 17.

18.

Solve each problem.

19.A husky running the Iditarod burns calories in

exertion for every 1 calorie burned in thermoregula-

tion in extreme cold. According to one scientific

study, a husky in top condition burns an amazing

total of 11, 200 calories per day. How many calories

are burned for exertion, and how many are burned

for regulation of body temperature? Round answers

to the nearest whole number.

20.One side of a triangle is twice as long as a second side.

The third side of the triangle is 17 ft long. The perimeter

of the triangle cannot be more than 50 ft. Find the longest

possible values for the other two sides of the triangle.

(^5 38)
4 - 13 x+ 122 = 12 x- 92 - 15 x- 12
0.05x+0.15 150 - x 2 =5.50

1

3

p-

1

6

p=- 2

x

5

=

x- 2

7

d=rt for r

2 - 31 t- 52 = 4 +t 215 x+ 12 = 10 x+ 4

• 312 x^2 - 8 x+ 92 - 14 x^2 + 3 x+ 22.

19 + 22 + 3 = 9 + 12 + 32 614 + 22 = 6142 + 6122

- 7 - 332 + 15 - 824

1 - 13 + 152 - 13 + 22

6 - 12

4 x- 2 y

x+y

x=- 2 y=4,.

141 yd^3

55

11

28

16

Nome

Finish

Start

Anchorage

ALASKA

2 x

17

x

2008 XXXVI Iditarod