Name ——————————————————————— 1. 5x 1 11 5 4x 1 18
Practice
LESSON
Date ————————————
x 1 11 5H 18W A Subtract 4x from each side. Lesson 1-‐5 Reloaded nswers x57 Subtract 11 from each side. Solve the equationOld and describe each step you Workbook Pg. use. 24/ #4 – 18 1. 5x 1 11 5 4x 1 18 2. 11p 2 4 5 6p 1 1 3. 26 5 2(w 1 5) (15 q ues:ons) See below. See below.
3.4
For use with pages 158–164
Solve the equation, if possible. 4. 15x 2 8 5 14x 1 13 x 5 21
5. 9n 2 7 5 5n 1 5
7. 27a 1 9 5 3a 1 49
8. 4(w 1 3) 5 w 2 15
a 5 24 10. 14m 2 10 5 3(4 1 m) m52 13. 10d 2 6 5 4d 2 15 2 3d d 5 21
n53
w 5 29 1 11. 7 1 x 5 } (4x 2 2) 2 x58 14. 16p 2 4 5 4(2p 2 3) p 5 21
6. 4z 2 15 5 4z 1 11
no solution
9. 8( y 2 5) 5 6y 2 18
y 5 11
12. 8b 1 11 2 3b 5 2b 1 2
b 5 23 15. 0.25(8z 2 4) 5 z 1 8 2 2z z53
Find the perimeter of the square.
48
16.
80
17.
5x 8 3x
24
18. 7x 15
10x 2x
6x 1 8
19. Saving and Spending Currently, you have $80 and your sister has $145. You decide
to save $6 of your allowance each week, while your sister decides to spend her whole allowance plus $7 each week. How long will it be before you have as much money as your sister? 5 weeks $24 per year. A local botanical garden charges members of the gardening association $3 for admission to the garden. Nonmembers of the association are charged $6. After how many visits to the garden is the total cost for members, including the membership fee, the same as the total cost for nonmembers? 8 visits 21. College Enrollment Information about students’ choices of majors at a small
college is shown in the table. In how many years will there be 2 times as many students majoring in engineering than in business? In how many years will there be 2 times as many students majoring in engineering than in biology? 3 years; 7.6 years Major
Number of students enrolled in major
Average rate of change
Engineering
120
22 more students each year
Business
105
4 fewer students each year
Biology
98
6 more students each year 3. 26 5 2(w 1 5)
2. 11p 2 4 5 6p 1 1
5p 2 4 5 1 5p 5 5 p51
Subtract 6p from each side. Add 4 to each side. Divide each side by 5.
26 5 2w 1 10 216 5 2w 28 5 w
Distribute 2 to (w 1 5). Subtract 10 from each side. Divide each side by 2.
Copyright © Holt McDougal. All rights reserved.
20. Botanical Gardens The membership fee for joining a gardening association is