Ratios & Proportional Reasoning
A basketball team has 12 girls and 8 boys. What is the ratio of boys to total players in simplest form?
2:5
What is the absolute value of -42?
42
Identify the independent variable in this scenario: "The total cost (c) of buying n basketball tickets."
n(the number of tickets)
What is the area of a right triangle with a base of 10cm and a height of 7cm?
35 cm^2
What is the range of this data set: 12, 15, 18, 22, 30?
18
A 12-pack of Gatorade costs $15.00. What is the unit price per bottle?
$1.25
At 6:00 AM, the temperature in Evansville was -5 degrees. By noon, it had risen 18 degrees. What was the temperature at noon?
13 degrees
Write an algebraic expression for "ten less than the product of a number x and 6."
6x - 10
Point A is at (-8, 3). If you reflect it across the y-axis, what are the new coordinates?
(8,3)
Find the median of this data set: 8, 5, 15, 12, 22, 20
13.5
A recipe uses 3 cups of flour for every 1.25 cups of sugar. If you use 12 cups of flour, how many cups of sugar do you need?
5 cups
Solve:
8 2/3 divide 2/3
13
Solve for x:
2/3x=12
A rectangular prism has a length of 5in, a width of 4in, and a height of 2 1/2in. What is the volume?
50 cubic inches
If a data set has a massive outlier (like a score of 100 in a set of 20s), which measure of center is affected the most?
The Mean
A $60 pair of sneakers is on sale for 25% off. After the discount, a 7% sales tax is added. What is the final price?
$48.15
What is the Greatest Common Factor (GCF) of 48 and 96?
48
Which inequality represents "You must be at least 48 inches tall to ride the roller coaster"?
h>=48
A square has a perimeter of 32 units. What is the area of the square?
64 sq. units
True or False: The Mean Absolute Deviation (MAD) measures how spread out the data is from the mean.
True
A swimmer travels at a constant rate of 1.5 meters per second. How many kilometers can they swim in 1 hour?
5.4km
Evaluate the expression:
15.5+(3^3-7)*1/4
20.5
Simplify the expression: 4(2x + 5) - 3x + 2.
5x+22
A composite figure is made of a 10 by 6 rectangle and a triangle with a base of 4 and height of 6 attached to the side. What is the total area?
72 sq. units
Calculate the MAD for this set: 10, 20, 30.
6.66 or 6 2/3