Name: _______________________________________ Weekly Homework 2/17-2/20
1. Vaughn is laying sod in his backyard. A diagram of his
backyard is below.
If a = 21 ft, b = 31 ft, and c =
37 ft, what is the area of the backyard?
A, 899 ft2
B. 1,147 ft2
C. 89 ft2
D. 24,087 ft2
2.
The object above is symmetrical
through Z. If Y = 13 inches, Z = 15 inches, and H = 6
inches, what is the area of the object?
A. 7.5 in2 B. 180 in2 C. 38 in2 D. 90 in2
3. Ms. Hatcher bought the pencil decoration shown
below for her bulletin board
If a = 10 in and b = 25 in, what is the area
of the pencil?
A. 350 in2 B. 250 in2 C. 125 in2 D. 300 in2
4. A wildlife biologist catches and releases 20 fish from
two different lakes at random locations. He catches
10 fish at Lake Palmer and 10 fish at Lake Dalton. He
measures the length of each fish to the nearest
quarter of an inch.
Palmer
Dalton
st
1 Quartile
6.75
5.5
2nd Quartile
10.25
6.75
rd
3 Quartile
13
7.5
Based on the samples, what generalization can be
made?
A. At least 25 percent of the fish in both lakes are
no longer than 6 inches
B. The first quartile value at Lake Palmer is 1.25
inches longer than the first quartile value at Lake
Dalton.
C. The interquartile range for Lake Dalton is 2
inches greater than the interquartile range for
Lake Palmer
D. Not enough information is provided to draw any
of these conclusions
5. At a middle school campus, the number of text
messages sent by males and females were analyzed.
Twelve random female students and 12 random
male students were asked how many text messages
they sent that day. The following data was calculated
from the number of text messages sent during the
day for males and females.
Females
Males
Mean
112
99
Median
68
52
Mode
78
78
Range
84
76
Based on these samples, what generalization can be
made.
A. Not enough information
B. The modes of text messages sent by both are the
same
C. A female sent the most number of text messages
out of both groups
D. Males sent more total messages than female
6. The dot plots below show the number of
hummingbirds spotted per day at two different
feeders.
The
variability at each feeder is 3.168. The difference
between the median number of hummingbirds
spotted per day at each feeder is approximately how
many times the variability?
A. 4 B. 3 C. 2 D. 5
7. Martha estimated there were 82 marbles in a jar for
a contest. The actual number of marbles in the jar
was 104. What was the percent error of Martha's
estimation? (estimate – actual) ÷ actual
A. 26.83% B. 22% C. 21.15% D. 78.85%
8. August hosted two dinner parties for his friends.
Twenty-five guests attended the first party, and
thirty-five guests attended the second party. What is
the percentage increase of the number of guests
from the first party to the second party?
A. 40% B. 70% C. 60% D. 30%
9. Sam opened a money-market account that pays 4%
simple interest. He started the account with $7,000
and made no further deposits. When he closed the
account, he had earned $560 in interest. How long
did he keep his account open?
A. 5yrs B. 2yrs C. 4yrs D. 3yrs
10. Holly missed 6 of 184 school days this year.
Approximately what percent of school days was
Holly in attendance?
A. 69% B. 3% C. 97% D. 31%
11. Sandy works at a clothing store. She makes $7 per
hour plus earns 15% commission on her sales. She
worked 72 hours over the last two weeks and had a
total of $2,050 in sales before taxes. Which of the
following is closest to how much she will earn in
hourly wages and commission for those two weeks?
A. $308 B. $812 C. $383 D. $504
12. A zookeeper predicted the weight of a new baby
elephant to be 258 pounds when it was born. The
elephant actually weighed 290 pounds at birth. What
was the percent error of the zookeeper's prediction?
(estimate – actual) ÷ actual
A. 11.03% B. 88.97% C. 32% D. 12.40%
13. Last month, when Joe took his puppy to the
veterinarian, the puppy weighed 5.2 pounds. This
month, the puppy weighed 8.32 pounds. What is the
percentage increase of the weight of the puppy?
A. 63% B. 3% C. 37% D. 60%
14. Tonya took out a loan to help pay for her house. She
borrowed $50,000 for 15 years at a yearly simple
interest rate of 5%. How much interest will she end
up paying the bank?
A. $7,500 B. $37,500 C. $375 D. $375,500
15. The dot plots below show the number of blooms on
miniature rose bush plants at two garden supply
stores.
The mean absolute deviation for each store is 1.5.
The difference between the median number of
blooms per plant for each store is how many times
the mean absolute deviation?
A. 9 B. 8 C. 6 D. 7
16. Last year, the school library had a total of x books.
Over the summer, the library acquired another 38
books and now has a total of 1,661 books. Which
equation could be used to find x, the number of
books the library had last year?
A. 1,661 + x = 38
B. X – 38 = 1,661
C. X + 38 = 1,661
D. 38x = 1,661
17. Brand is combining the leftovers from two batches of
1
3
chili to serve for dinner tonight. There are3 cups of
chili left over from the first batch of chili, and there
are 6
3
4
total cups of chili left over.
1
3
3 +x=6
3
4
How many cups of chili were
left over from the second batch of chili?
5
5
1
1
A. 2 12 B. 312 C. 9 2 D. 10 12
18. Tim and Tom are trying to earn money to buy a new
game system over a 3-month period. Tim saved
$45.10 each month. If they need a total of $212.04
to buy the game system, how much does Tom need
to earn each of the 3 months in order to buy the
game system?
A. $166.94 B. $135.30 C. $76.74 D. $25.58
19. Mary spent a total of $322.98 for a party. She spent
$200.50 on food, plus an additional $30.62 for each
hour of the party. How long was the party?
A. 3hours B. 6hours D. 4hours D. 5hours
20. The perimeter of a rectangle is 44 inches. If the
width of the rectangle is 7 inches, what is the length?
A. 15in B. 37in C. 22in D. 30in
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