Name ________________________________________ Date __________________ Class__________________
LESSON
3-1
Practice B
Solving Two-Step and Multi-Step Equations
Solve each equation. Check your answers.
1. 4x 7
11
2. 17
________________________
4. 3m 4
1
5. 12.5
y
4
5
10. (x 10)
7
9
2n 1
9
2, find the value of x 6.
14. If 2(3y 5)
2
4
t
5
5
2
3
________________________
12. 8
_________________________
h 7
________________________
9. 6
2p 10
________________________
6. 13
_________________________
11. 2(b 5)
7
________________________
13. If 3x 8
2g 3.5
_________________________
8.
________________________
3. 4
_________________________
________________________
7. 6
5y 3
4(q 2) 4
________________________
_____________________________________
4, find the value of 5y.
_____________________________________
Answer each of the following.
15. The two angles shown
form a right angle.
Write and solve an
equation to find the
value of x.
_____________________________________
16. For her cellular phone service, Vera pays $32 a
month, plus $0.75 for each minute over the
allowed minutes in her plan. Vera received a bill
for $47 last month. For how many minutes did
she use her phone beyond the allowed minutes?
_____________________________________
© Houghton Mifflin Harcourt Publishing Company
50
Holt McDougal Coordinate Algebra
Review for Mastery
Practice B
1. hundredth; tenth; 73.71
1. x
1
2. y
2. 4.732; thousandth; hundredth; 4732 mL
3. p
7
4. m
1
3. tenth, thousandth; hundredth; 2
5. g
8
6. h
6
7. y
50
8. n
1
3
9. t
4. 37; 47; 37; 47
5. 3.19; 3.21; 3.19; 3.21
6. 0.05; 1.25; 1.25; 23.75; 1.25; 26.25;
23.75; 26.25
11. b
7. 0.02; 0.8; 0.8; 39.2; 0.8; 40.8; 39.2; 40.8
1. 0.19Û
1
3
10. x
3
2
12. q
3
13. 4
Challenge
14. 5
15. 3x 5 2x
2. 4.6Û
4
90; 19
16. 20 minutes
3. 3000 km
Practice C
Problem Solving
1. 864 in.; Rolondo’s foot
2. No; it is too long
3. 1, 2, 3, 4, 5, 6, 9, 10, 11, 13
4. D
5. G
6. C
7. H
Reading Strategies
1. 7.0–9.0
2. 2.4–4.0
3. r3
4. r2.5
5. B
6. A
14
1. r
3
2. w
3. y
4
4. f
5
5. p
10
6. r
7
7. y
27
8. h
9. m
3
10. v
11. b
7
12. n
13. 10
7
8
1
2
5
8
14. 12
15. 30
16. 0.75x 18.50
Answer Key for Unit 2
24.25, 57 cookies
Review for Mastery
3-1 SOLVING TWO-STEP AND
1. 4
5
3.
3
5
5.
4
25
7.
2
MULTI-STEP EQUATIONS
Practice A
1. 2; 10; 2
2. 3; 8; 4
3. 21; 9; 3
4. t
2
5. x
5.4
6. r
23
7. y
3
8. b
24
9. m
11. y
1
8
10. x
6
3
12. d
1
14. 7x 6 5x
13. 8
15. x
2. 60
4. 5
6. 1
Challenge
90
7
1. 4 inches
2. 8 inches
3. 1 inch
4. 9 inches
5. 15 inches
6. 7 inches
7. 3 inches
8. 7 inches
9. 6 inches
10. 11 inches
11. 15 inches
12. 4 inches
© Houghton Mifflin Harcourt Publishing Company
A7
Holt McDougal Coordinate Algebra