WorksheetsPre-Algebra Semester 1 Review
Total questions: 116
Worksheet time: 4hrs 45mins
The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?
½
¼
4
2
If your SF = 2.5, what type of dilation is it?
Reduction
Enlargement
If your SF = 0.8, what type of dilation is it?
Reduction
Enlargement
The box-and-whisker plot displays the number of inches of snowfall last year for 14 cities. Each city had a different amount of snowfall.
What is the median amount of snow that fell?
80 inches
64 inches
56 inches
76 inches
Consider the boxplot below. What is the lower quartile?
7
10
8
6.5
What percentage of the data is between 40 and 90?
25%
50%
75%
100%
Which city, Nashville or Dallas, has the smaller median?
Nashville
Dallas
Which profession had the greatest range of salaries?
Nuclear engineer
Police officer
Musician
Impossible to tell
Which of the following are true about the IQR? Check all that apply.
IQR = Q3 - Q1
IQR = Q1 - Q3
The IQR is the middle 50% of a distribution
IQR stands for interquartile range
The IQR is the width of the box in a boxplot
The _________ is the midpoint of the data.
median
mean
mode
standard deviation
12,10,10,10,13,12,11,13,10
What is the probability of spinning an even number?
16 2/3%
33 1/3%
50%
75%
5 green
6 yellow
8 blue
7 brown
Bob has 6 fiction books and 4 nonfiction books on his bookcase. What is the probability he will select 2 fiction books without replacement?
9/25
1/3
3/10
6/10
There are 5 M &M's in a jar. Three are blue M & M's and two are red M & M's. What is the probability of picking a blue M & M, not replacing it and then picking a red M & M?
3/10
6/25
9/25
9/20
There are four blue, one yellow, three green, one purple, and one grey marbles in the bag. What is the probability of drawing a green marble the first time, and without replacing it, a yellow marble on your second draw?
3/100
1/30
2/5
1/27
Sue is picking marbles from the bag without replacing them. What is the probability she will pick a green marble and then not a blue marble?
1/9
1/12
4/27
5/36
If a jogger runs a 10km race in 60 minutes, what is her average speed
10km/hr
5km/hr
6km/hr
1.66km/hr
An aircraft carrier travels a distance of 1000km in 3 days. What is its average rate of speed?
1000km/hr
3000km/hr
333.3km/hr
13.9km/hr
If a person ran 32 km at a rate of 8km/hr, how long did he run?
6 hours
8 hours
4 hours
196 hours
If a puppy runs across a park at a speed of 15 m/s. The puppy has a time of 5 seconds. How far did the puppy run?
75 m
30 m
45 m
105 m
4.3%
0.37
Interest rate = 2.5%
TIme = 3 years.
How much interest?
Calculate the interest. I = PRT,
Principal = $1000,
Rate = 6%,
Time = 2 years
$100
$120
$180
1200
Principal = $10000,
Rate = 7%,
Time = 20 years
From $5 to $8
From 13 friends to 14 friends
From $80 to $64
From 90 points to 45 points
Original amount: 10
New amount: 12
