Chapter 7

Sections 7.1
50. 3 h 20 min
4 h 25 min
+ 5 h 35 min

54. 9 lb 15 oz
_ 5 lb 8 oz

74. Crafts. Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film
developer that holds 3 qt. How much of the developer remains?

Sections 7.2

50. What units in the metric system would you use to measure each of the following
quantities?
(a) Distance from Los Angeles to New York
(b) Your waist measurement
(c) Width of a hair
(d) Your height

Sections 7.3 Solve the applications

70. Science and medicine. The United States emitted 19.5 million t of nitrogen oxides
(NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many
kilograms of NO were emitted to the atmosphere in the United States during 1987?

Sections 7.4 Complete each statement. (Round to the nearest hundredth.)

6. 72 in. = _________ cm

12. 7 L = _________ qt

18. Science and medicine. Samantha’s speedometer reads in kilometers per hour. If
the legal speed limit is 55 mi/h, how fast can she drive?

Sections 7.5 Identify each object as a line or line segment. (No)

Sections 7.6

2. no
10.no
24.no
26.no

44. A tree casts a shadow that measures 5 m. At the same time, a meter stick casts a
shadow that is 0.4 m long. How tall is the tree?

Sections 7.7 Find the square root.

4. square root of 196

16. no

ions 7.5 Identify each object as a line or line segment. (No)

Sections 7.6

2. no
10.no
24.no
26.no

44. A tree casts a shadow that measures 5 m. At the same time, a meter stick casts a
shadow that is 0.4 m long. How tall is the tree?

Sections 7.7 Find the square root.

4. square root of 196

16. no

h of the following
quantities?
(a) Distance from Los Angeles to New York
(b) Your waist measurement
(c) Width of a hair
(d) Your height

Sections 7.3 Solve the applications

70. Science and medicine. The United States emitted 19.5…