Equations and Expressions
Combine like terms:
3x + 4 + 2x + 6
5x + 10
A box contains 7 white marbles, 4 red marbles and 9 blue marbles. What is the probability that when a marble is picked at random it will be a red marble?
4/20 or 1/5 or 20%
If the radius of a circle is 3 cm, what is the diameter?
6 cm
What is the mode in the following data set:
5,8, 8, 9, 9, 9, 10
9
What transformation results in a image that is similar to the pre-image?
Dilation
Distribute:
8(3x - 9)
24x - 72
A shirt was on sale at kohls for 20% off. If the original price was $24.99, what was the discounted price of the shirt?
$19.99
What kind of angle measures exactly 90 degrees?
A right angle
What is the square root of 64?
8
What is the mean of the following data set:
84, 72, 65, 91, 88
80
Simplify:
3x + 2(x - 8)
5x - 16
Mrs. Miller paid $54.28 for 15 gallons of gas. How much did she pay per gallon?
$3.62 per gallon
48 degrees
-8 + -3
-11
Describe a line of best fit:
A line of best fit would go through the center of a scatter plot. It is used to make predictions.
Solve for x:
8x + 4 = 36
x = 4
-295 feet
What is the volume of a cylinder that has a radius of 4 in. and a height of 12 in? Round to the nearest tenth.
603.2 inches squared
72
49
A map has a scale of 1cm = 4 miles. How far away would two cities be away from each other if on the map they were 15 cm apart?
60 miles
Solve for x:
3x +4(x -6) = 11
x = 5
Megan and 4 of her friends are going on a long drive. She buys 12 bottles of frappe and a few bottles of orange juice from a convenience store. The total number of bottles they have are four times that of the orange juice bottles. How many bottles of orange juice did Megan buy?
4 bottles of orange juice
What is the length of the hypotenuse of a right triangles with side lengths of 4 and 5? Round to the nearest tenth.
6.4
x3+x5
x8
Ms. Storms went out to dinner with her friends. Their bill came to $84.15. They want to leave a 20% tip. What will be the total cost of their meal?
$100.98