Algebra 1 - MathnMind

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1 3
Find the solution of each equation if the replacement sets are A 0, , 1, , 2
2 2
and B {3, 3.5, 4, 4.5, 5}.
1
1. a 1
2
2. 4b 8 6 3. 6a 18 27
4. 7b 8 16.5 5. 120 28a 78
28
6. 9 16
b
Find the solution of each equation using the given replacement set.
7 17 1 13 7 5 2
3
27 1 1 1
7. x ; , , , , 8. (x 2) ; ,1,1 ,2,2
8
9. 1.4(x 3) 5.32; {0.4, 0.6, 0.8, 1.0, 1.2} 10. 12(x 4) 76.8 ; {2, 2.4, 2.8, 3.2, 3.6}
Solve each equation.
11. x 18.3 4.8 12. w 20.2 8.95 13. d
14. k 15. y
5(2
16. p
2 37 9
18 11
97 25
41 23
4(22 4)
3(6) 6
) 4(3)
4(23 4)
Find the solution set for each inequality using the given replacement set.
17. a 7 10; {2, 3, 4, 5, 6, 7} 18. 3y 42; {10, 12, 14, 16, 18}
19. 4x 2 5; {0.5, 1, 1.5, 2, 2.5} 20. 4b 4 3; {1.2, 1.4, 1.6, 1.8, 2.0}
3y
1 1 3 1 5 3
21. 2; {0, 2, 4, 6, 8, 10} 22. 4a 3; , , , , ,
5
NAME ______________________________________________ DATE ____________ PERIOD _____
Practice
Open Sentences
12
2
24
12
8
3
23. TEACHING A teacher has 15 weeks in which to teach six chapters. Write and then solve
an equation that represents the number of lessons the teacher must teach per week if
there is an average of 8.5 lessons per chapter.
LONG DISTANCE For Exercises 24 and 25, use the following information.
Gabriel talks an average of 20 minutes per long-distance call. During one month, he makes
eight in-state long-distance calls averaging $2.00 each. A 20-minute state-to-state call costs
Gabriel $1.50. His long-distance budget for the month is $20.
24. Write an inequality that represents the number of 20 minute state-to-state calls Gabriel
can make this month.
25. What is the maximum number of 20-minute state-to-state calls that Gabriel can make
this month?
© Glencoe/McGraw-Hill 16 Glencoe Algebra 1
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