76. If <, a = 2a and ab = 18, what is the value79. Three students run around the samearacetrack at different speeds. Ben runs a lapof b?in 3 minutes, Zoey runs a lap in 4 minutes,and Sarah runs a lap in 6 minutes. If they allА. 2start at the same spot, after how manyВ. 3minutes will the all be at the same spot at theС. 6same time?D. 9A. 8 minutesB. 12 minutes77. The fraction is halfway between 0.5 and whatC. 18 minutesfraction?D. 24 minutesA.80. The length of a rectangle is twice the sum ofВ.4its 2 widths. If the area is 36, what is theperimeter?С.8A. 18В. 2415D.16С. 30D. 3678.Earnings25081. During the week, Joe makes three times thenumber of doughnuts that Bob makes. Bob200makes only half as many doughnuts as Jessemakes. If Jesse makes 160 doughnuts, howmany doughnuts does Joe make?15010050A. 160В. 240246.10С. 480Number of hours workedD. 960The graph shows the relationship betweenthe number of hours Megan works and theamount she earns. How much does Meganearn per hour?A. $10.00B. $15.00Amount earned 87. A paw patrol sticker book has exactly 64 stickers,91.Stella's Book CollectionBook categoryMysteryBiographyScience Fictioncontaining four characters: Chase, Marshall, SkyeNumber of books12and Rubble. 1/4 of the stickers has multiplecharacters on them, of which Chase appears on7%. Chase also appears on 12 stickers by himself.What is the probability when choosing a sticker4RomanceStella's bookshelf contains her book collection, asoutlined above. Which category of book hasexactly 1/4 chance of being picked at random fromat random that you will pick one without Chase?А. 5/16the shelf?В. 9/16С. 11/16D. 3/4A. MysteryB. BiographyC. Science Fiction88. A (5,1) lies on a circle whose center is O (1,5).D. RomanceIf AB is a diameter, what are the coordinates92. If 20% of the science students at Central Highof B?study only physics, 25% study only chemistryand the rest study only biology, what is thesmallest number of science students whoА. (3,3)В. (-1,5)С. (1,10)D. (-3,9)could be studying biology?А. 4В. 989. If 2x - 1 = 9, what is 10x - 5?С. 11D. 15А. 35В. 4593. What isvolume,cubic inches,cuС. 55whose total surface area is 216 square inches?D. 75А. 6В. 18С. 3690. Hoover High School has 840 students, and theratio of the number of students takingD. 216Spanish to the number not taking Spanish is94. In a class, 20 children were sharing equally thecost of a present for their teacher. When 4 of4:3. How many of the students take Spanish?the children decided not to contribute, each ofA. 280the other children had to pay $1.50 more. HowВ. 360much, in dollars, did the present cost?C. 480D. 560А. 50B. 80С. 100D. 120

Name: 76. If <, a = 2a and ab = 18, what is the value79. Three students run
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Description: 76. If <, a = 2a and ab = 18, what is the value79. Three students run around the samearacetrack at different speeds. Ben runs a lapof b?in 3 minutes, Zoey runs a lap in 4 minutes,and Sarah runs a lap in 6 minutes. If they allА. 2start at the same sp

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Answered: 76. If , a = 2a and ab = 18, what is…

Math

Algebra

76. If , a = 2a and ab = 18, what is the value of b? A. 2 B. 3 C 6 D. 9

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Concept explainers

Unitary Method

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Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.

Topic Video

Question

76. If <, a = 2a and ab = 18, what is the value
79. Three students run around the same
a
racetrack at different speeds. Ben runs a lap
of b?
in 3 minutes, Zoey runs a lap in 4 minutes,
and Sarah runs a lap in 6 minutes. If they all
А. 2
start at the same spot, after how many
В. 3
minutes will the all be at the same spot at the
С. 6
same time?
D. 9
A. 8 minutes
B. 12 minutes
77. The fraction is halfway between 0.5 and what
C. 18 minutes
fraction?
D. 24 minutes
A.
80. The length of a rectangle is twice the sum of
В.
4
its 2 widths. If the area is 36, what is the
perimeter?
С.
8
A. 18
В. 24
15
D.
16
С. 30
D. 36
78.
Earnings
250
81. During the week, Joe makes three times the
number of doughnuts that Bob makes. Bob
200
makes only half as many doughnuts as Jesse
makes. If Jesse makes 160 doughnuts, how
many doughnuts does Joe make?
150
100
50
A. 160
В. 240
2
4
6.
10
С. 480
Number of hours worked
D. 960
The graph shows the relationship between
the number of hours Megan works and the
amount she earns. How much does Megan
earn per hour?
A. $10.00
B. $15.00
Amount earned

87. A paw patrol sticker book has exactly 64 stickers,
91.
Stella's Book Collection
Book category
Mystery
Biography
Science Fiction
containing four characters: Chase, Marshall, Skye
Number of books
12
and Rubble. 1/4 of the stickers has multiple
characters on them, of which Chase appears on
7
%. Chase also appears on 12 stickers by himself.
What is the probability when choosing a sticker
4
Romance
Stella's bookshelf contains her book collection, as
outlined above. Which category of book has
exactly 1/4 chance of being picked at random from
at random that you will pick one without Chase?
А. 5/16
the shelf?
В. 9/16
С. 11/16
D. 3/4
A. Mystery
B. Biography
C. Science Fiction
88. A (5,1) lies on a circle whose center is O (1,5).
D. Romance
If AB is a diameter, what are the coordinates
92. If 20% of the science students at Central High
of B?
study only physics, 25% study only chemistry
and the rest study only biology, what is the
smallest number of science students who
А. (3,3)
В. (-1,5)
С. (1,10)
D. (-3,9)
could be studying biology?
А. 4
В. 9
89. If 2x - 1 = 9, what is 10x - 5?
С. 11
D. 15
А. 35
В. 45
93. What is
volume,
cubic inches,
cu
С. 55
whose total surface area is 216 square inches?
D. 75
А. 6
В. 18
С. 36
90. Hoover High School has 840 students, and the
ratio of the number of students taking
D. 216
Spanish to the number not taking Spanish is
94. In a class, 20 children were sharing equally the
cost of a present for their teacher. When 4 of
4:3. How many of the students take Spanish?
the children decided not to contribute, each of
A. 280
the other children had to pay $1.50 more. How
В. 360
much, in dollars, did the present cost?
C. 480
D. 560
А. 50
B. 80
С. 100
D. 120

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