Name _______________________________________ Date __________________ Class __________________
1.3 Coordinate Algebra – 1st Semester
Solving Equations by Multiplying or Dividing
Solve each equation. Check your answers.
1.
d
8
6
2.
________________________
4.
t
2
12
49
7y
________________________
10.
v
3
6
________________________
n
2
3. 2p
________________________
5.
________________________
7.
5
40
4x
________________________
6.
________________________
8.
3n
5
15
2r
3
9. 9m
b
4
6
________________________
12.
________________________
16
________________________
________________________
11. 2.8
54
3r
4
1
8
________________________
Answer each of the following.
13. The perimeter of a regular pentagon
is 41.5 cm. Write and solve an equation
to determine the length of each side
of the pentagon.
_____________________________________
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Coordinate Algebra
Name _______________________________________ Date __________________ Class __________________
14. In June 2005, Peter mailed a package
from his local post office in Fayetteville,
North Carolina to a friend in Radford,
Virginia for $2.07. The first-class rate at
the time was $0.23 per ounce. Write and
solve an equation to determine the weight
of the package.
_____________________________________
15. Lola spends one-third of her allowance
on movies. She spends $8 per week
at the movies. Write and solve an equation
to determine Lola’s weekly allowance.
_____________________________________
Write and solve an equation to represent each relationship.
16. The product of 9 and a number is 72.
_____________________________________
17. A number divided by 3 is equal to 2.8.
_____________________________________
18. Two thirds of a number is equal to 14.
_____________________________________
Answer each of the following.
19. The perimeter of a regular octagon
is 55.2 mm. Write and solve an equation
to determine the length of each side
of the octagon.
_____________________________________
20. In April 2005, Roland mailed a package
from his local post office in Albemarle,
North Carolina to a friend in Fishers,
Indiana for $2.76. The first-class domestic
rate at the time was $0.23 per ounce.
Write and solve an equation to determine
the weight of the package.
_____________________________________
21. Jasmine earned a mean score of
34,250 points on the video game that
she played 6 times. Write and solve an
equation to determine the total number
of points Jasmine earned in the 6 games.
_____________________________________
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Coordinate Algebra
Name _______________________________________ Date __________________ Class __________________
Review for Mastery
Reading Strategies
1.
1. addition
2. Add 5 to the left side.
4
3. Add 4 to both sides.
2.
3. 8
4. 19
5. 5
6. x
1
9.
16
11.
7
5; 1
8.
4
10.
6
7
12; 7
x
2; 2
1. a. Let x represent the distance traveled.
37,538 x 37,781
b. 243 miles
d
4. a. d
b. s
c. e
d. d
3
7. t
15
9. h
11
o
d, o
120
2. w
23
3. 365
d
19.9
SOLVING EQUATIONS BY
MULTIPLYING OR DIVIDING
1. d
18
2. n
3. t
15
4. r
20
5. b
17.5
6. v
36
7. y
5
8. p
10
9. m
1
10. x
2
12. k
12
1
7
x
4
21
63; 252 students
1.15; $0.23
15. 4x
64; 16 mm
Practice B
f
d, and d
f
Problem Solving
1. m
2
14. 5x
1697
17,152
63,777
1111
5
7. 9
feet
12
5. A
6. k
13.
2
5. 7 feet
3
4. p
5
11. y
e
3. a. e d
b. e s
c. s d
6. f
5. g
Practice A
Challenge
2. s
13
8. y
5
7. x
4. m
o
1. d
48
2. n
10
3. p
27
4. t
24
5. x
10
6. r
24
7. y
7
8. n
25
9. m
2
3
10. v
18
11.2
12. r
1
6
11. b
3345; $3465
13. 5x
41.5; 8.3 cm
184; 207 lbs
687; 322 days
53.4; 33.5%
6. G
7. B
14. 0.23x
2.07; 9 oz
15.
1
x
3
8; $24
Practice C
1. e
75
2. g
56
3. d
7
4. n
9
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Coordinate Algebra
Name _______________________________________ Date __________________ Class __________________
5. t
13
6. r
40
7. y
9
8. f
6
7
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Coordinate Algebra