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Math 40
Prealgebra
Section 4.3 – HOMEWORK
In Exercises 1-12, write the reciprocal of the given numbers.
1.

3.
7
8
5.

7.
12
5
1
15
2.

4.
9
2
6.

16
8.
23
9.
39
10.
17
11.
23
24
12.
28
29
1
18
3
4
In Exercises 13-26, find the quotient.
13.
6 21

5 10
14.
7 28

15 36
15.
28
  7 
25
16.
 3
9    
 8
17.
3 3

4 16
18.
6 6

3 15
19.
2  4 
 
5  45 
20.

21.
 10 
60    
 3
22.
32
  8 
45
23.
25
5

32 28
24.
16 20

27 21
25.

26.

21
  3 
36
16  4 
 
27  9 
35
5
45
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Math 40
Prealgebra
Section 4.3 – HOMEWORK
In Exercises 27-48, find the quotient.
27.
2x 7

9 3
28.
4a 3

5 10
29.
8c 
30.
 3a 4 
12a   

 10 
31.
18 y 4 4 y 3

11
7
32.
4 x 2 11x

3
6
33.
22 x 5 12 x 2

13
11
34.
15 y 4 10 x 2

14
13
35.
9 4

4a 2 3a
36.
10 2

2c 5 5c 2
37.
8
48
 3
6
c c
38.
4
36
 2
4
a a
39.
1  y3

y 2 14
40.
1 y4

y 2 16
41.
9x 
42.
3a 
43.
20c c 3

33a 77 a
44.
16 y 4 32 y 4

27 x 3 21x
45.
xy 3 x 2 y 2

12
10
46.

47.
6a   15a 



11c  22c 2 
48.
15 y 2 10 y
 3
8x
x
4c 3
9
3y
4x
4c
12a
a c 2  a 2 c 3 


10  15 
2
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Math 40
Prealgebra
Section 4.3 – HOMEWORK
In Exercises 49-58, solve the following application problems.
49.
How many
1
ounce servings of olive oil can be poured from a 32-oz bottle?
4
50.
How many
1
ounce eyedrop dispensers can be filled from a container that holds 12 ounces of eyedrops?
8
51.
A recipe calls for
52.
A recipe calls for 5 cups of flour and the only measuring container you have holds
3
1
1
cup of sugar and the only measuring container you have holds cup. How many
4
8
8
3
cups of sugar must be used to obtain
cup?
4
1
1
cup. How many
3
3
cups of flour must be used to obtain 5 cups?
53.
Matt is in charge of making burgers for dinner. If he has 3 pounds of ground beef and each burger
requires 1 pound, how many burgers can he make?
4
54.
Elliot is in charge of making burgers for dinner. If he has 2 pounds of tofu and each burger requires 1
3
pound, how many burgers can he make?
55.
Dominic is making light sabers for his Star Wars party. Each light saber requires 3 yard of plastic
4
tubing. He has a 36 foot piece of plastic tubing. Find the number of light sabers he can make.
56.
James has a truck that can carry 5 ton of fertilizer. Find the number of trips needed to deliver 3 tons of
8
fertilizer.
57.
Most surfboards are made of a foam core covered with several layers of fiberglass to keep them
watertight. How many layers are needed to build up a finish 3 of an inch thick if each layer of fiberglass
8
has a thickness of 1 of an inch?
16
58.
Each lap around a stadium track is 1 mile. How many laps would a runner have to complete to get a 10
4
mile workout?
3
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