What number is not rational?
a. -1/5
b. Pi
c. 0.333....
b. Pi
a rational number can be written as fraction a/b
Simplify -2 + 4 - 5^2
-23
The diameter of a carousel is 50 feet. The circumference is: (use 3.14 for pi)
a. 16 feet
b. 157 feet
c. 314 feet
b. 157 feet
Snowfall amounts measured in inches in 2022 were as follows:
21, 6, 8, 6, 10, 24, 8, 6
Find the mode
6 inches
Anoki picked marbles from a bag 1 at a time without looking. He records the color of each marble and returns it to the bag before picking the next marble.
Blue 10 Green 10
Purple 10 Red 10 White 10
Based on the results in the table, what is the least number of marbles that could have been in the bag?
5
3 coordinates of a rectangle are plotted on a grid. They are (2,3), (5,3), and (5, 1). What is the fourth coordinate to complete the rectangle?
(2, 1)
At 2 pm, Sam begins reading a book that has 175 pages. He finishes page 50 at 2:30 pm. At this rate, what time will he finish reading the whole book?
3:45 pm
Jean baked a pizza with a diameter of 10 inches. What is the approximate circumference using 3.14 for pi? Round to the nearest whole number.
31 inches.
The MN Lynx 2023 game scores are as follows:
75, 60, 87, 82, 86, and 72
Find the median
78.5
The mean of a set of 4 points of data is 62. The value 40 is removed from the existing data. What happens to the mean?
A. It does not change.
B. It decreases.
C. It increases.
D. There is not enough information to determine this.
c. increases
There is a point on the coordinate grid of (-3, 7). Is that in the top left, top right, bottom left, or bottom right?
Top left
A kangaroo weighed 110 pounds. He weighed 143 pounds 10 years later. What was the kangaroo's average rate of change during the 10 years?
3.3 pounds
A cookie has a diameter of 5 inches. What is the approximate area of the cookie? Use 3.14 for pi. Round to the nearest tenth.
19.6 squared inches
A 6 sided die is rolled twice. What is the probability of rolling a 4 and then a 2?
1/36
A randomly thrown dart lands in 1 of 3 sections of the game board.
What is the probability that the dart lands in the section marked 5 points?
11%
Bob bought a book for 25% of its original price. What fraction of the original price did he spend?
3/4
Draw a line representing a proportional relationship on a coordinate plane.
a line starting at 0 going up and to the right
A blueprint shows 2 inches equals 3.5 feet. How wide is the living room if the drawing is 8 inches wide?
14 feet
Matthew conducts a survey for which he collects people’s ages. The results of Matthew’s survey are shown.
• Group 1: 40 30 20
• Group 2: 24 32 26 45
• Group 3: 18 36 36 30 36
Order the groups based on their median.
Group 2: 29
Group 1: 30
Group 3: 36
What type of number is the quotient of 37÷13?
A. The quotient is a nonrepeating decimal that is not a rational number.
B. The quotient is a repeating decimal that is a rational number.
C. The quotient is a terminating decimal that is a rational number
B. The quotient is a repeating decimal that is a rational number.
Simplify -15/-75
1/5
If h = 4, j = -3, and k = 1/4
Solve:
2h + j (8k) -24
-22
A cylinder has a diameter of 28 centimeters and a height of 60 centimeters. What is the surface area to the nearest square centimeter?
6506 squared centimeters
Use the graphs of the numbers of students who attended after-school help sessions to answer the question.
What is the difference between the mean number of students from week 1 and week 8?
13
Tasha tossed a coin 20 times. It landed heads up 8 times. What is the relative frequency that the coin landed heads up?
40%