Scale
Luanne made a photocopy of a drawing of a rectangle. The original drawing was 4.5 inches wide and 6 inches long. The copy was 6.75 inches wide and 9 inches long. What was the scale factor of the original to the copy?
1.5
At a skating rink, the cost of a birthday party depends on the number of guests who attend. The table shows the prices. What is the cost per guest?
Guests (x) Cost (y)
6 $43.50
10 $72.50
15 $108.75
A. $4.35 B. $7.25 C. $8.50 D. $10.88
$7.25
Find the solution to the inequality.
9 - 4x > -7
A. x < -4
B. x > -4
C. x < 4
D. x > 4
x < 4
A group of friends went to lunch, and their bill was $132.50. An 18% gratuity was added to the bill. What was the total amount of the bill?
A. $23.85
B. $150.50
C. $156.35
D. $198.75
$156.35
Diane decides to find out what snack food students like at her middle school What should she do to get the most accurate information?
A. Ask her friends
B. Take a random survey among the girls in her class
C. Take a random survey among students in each grade
D. Find out what was ordered last year
C
An engineer builds a model of a water system to a scale where 2 inches equals 5 feet. If the source of the water is 24 inches above ground level on the model, how high above ground is it on the actual site?
60
Lauren made 15 cups of lemonade by mixing
lemon juice and sugar water. The ratio of lemon
juice to sugar water is 2 : 3. How many cups of
lemon juice are in the lemonade?
A. 6 cups
B. 9 cups
C. 10 cups
D. 22.5 cups
10 cups
Solve the following inequality.
9m + 3m - 2 > 130
A. m > 12
B. m < 13
C. m > 11
D. m < 13
m > 11
William put $500 into a savings account that earned 2% simple interest. After 3 years, how much interest did William earn?
A. $10 B. $30 C. $200 D. $530
$30
Spinning a spinner that's divided into 4 parts (blue, red, yellow, green) was spun 10 times. It landed on blue 4 times, red 2 times, yellow 2 times, and green 2 times. What part of the spinner would you expect to land on blue?
A. 1/10 B. 2/5 C. 4/6 D. 2/3
B
The dimensions of a room measure 12 ft by 9 ft. In a
scale drawing of the room, 1 in. = 3 ft. What are the
dimensions of the room in the drawing?
A. 4 in. by 3 in.
B. 4 in. by 12 in.
C. 15 in. by 12 in.
D.36 in. by 27 in.
A
A table shows the relationship between the number of hours worked and the amount of money earned.
Hours (x) Earnings (y)
2 18
4 36
6 54
1. 9
2. y=9x
<1 and <2 are supplementary angles. If <1 = 2x - 4 and <2 = 4x - 14. Find the measure of <1.
62
The regular price of a computer monitor is $185. It is on sale for 15% off. Sales tax is 8%. What is the cost of the computer monitor after the discount and sales tax are applied?
A. $172.05
B. $169.83
C. $157.25
D. $144.67
$169.83
Consider the following sets of data:
A. [2, 3, 5, 5, 5, 15]
B. [10, 20, 30]
C. [140, 141, 142, 143]
D. [40, 40, 40, 40, 40]
Which set has the largest range?
Set A
Dennis made a scale drawing of his backyard, using
the scale 1⁄4 inch = 3 feet. The rectangular swimming
pool was 2 inches long and 1 inch wide in the drawing.
What was the area of the actual swimming pool?
288
A babysitter earns $18 for 2 hours of work and $45 for 5 hours of work.
Is the relationship between hours worked and money earned proportional? Explain how you know.
Yes, because the C.O.P is the same. (9)
For a conference, a hotel charges $45 per
hour for the use of a banquet room, plus $22.95
per person. What is the total cost to rent a banquet room for 3 hours for 180 people?
A. $337.95
B. $1,572.75
C. $4,266.00
D. $8,168.85
$4,266
Erica saw a skateboard on sale for $59.95. The original price of the skateboard was $79.95. What is the approximate percent discount on the skateboard?
A. 20%
B. 25%
C. 75%
D. 80%
25%
A 5-color spinner is used in an experiment, and the frequency of landing on each color is recorded.
Based on the experimental results, how many spins would you expect to land on orange or blue in a new experiment with 80 trials?
A. 18
B. 20
C. 22
D. 24
30
A builder made a scale drawing of a rectangular
room. The drawing has a length of 6 inches and a
width of 4.5 inches. The actual room will have a
length of 18 feet. What will be the area of the
actual room?
A. 243 square feet
B. 260 square feet
C. 432 square feet
D. 486 square feet
243 square feet
Sammy charges $21.75 for 3 hours of babysitting and $43.50 for 6 hours of babysitting. The equation y = 8x models the amount Claire charges for x hours of babysitting. Who charges less for 5 hours of babysitting and by how much?
A. Sammy charges less by $0.75.
B. Claire charges less by $0.75.
C. Sammy charges less by $3.75.
D. Claire charges less by $3.75.
C. Sammy charges less by $3.75.
Joe’s phone plan charges a flat rate per minute
for a long distance call. The cost for a 24-minute
call is $1.68, and a 45-minute call costs $3.15. If it
represents the total cost of the call, which equation
represents the cost of a phone call n minutes in
length?
A. t = n + 1.68
B. t = 1.68n
C. t = n + 0.07
D. t = 0.07n
D
Two computer salesmen are comparing their earnings. John earns $12 an hour, plus a 15% commission on his
sales. Dave earns $9 an hour, plus a 17% commission on his sales. If they each sell $6,500 worth of computers in a
40-hour work week, who earns more money and how much more?
A. Dave earns $10 more than John.
B. John earns $10 more than Dave.
C. Dave earns $100 more than John.
D. John earns $100 more than Dave
A. Dave earns $10 more than John.
Find the mean absolute deviation from the list below:
4, 6, 8, 10, 12, 14
A. 2
B. 3
C. 4
D. 5
3