Inequalities
x + 12 > 18
x > 6
What are the steps to solve a two step equation?
Draw the line, box the variable, do the inverse of adding and subtracting, do the inverse of multiplying and dividing
What is the probability of flipping a coin and getting tails?
1/2
How do you find area of a triangle?
Base x Height divided by two
When finding volume, Big B represents what?
b x h or b x h divided by two (the area of the base shape)
Draw the line, Box the variable, add 4 to both sides, divide both sides by -3, flip the inequality because you are dividing by a negative
What are the steps to solve 8-12?
different signs subtract and keep the sign of the larger number
On a spinner labeled 1-8, what is the probability you will spin and get a 2 or a 3?
1/4
How do you find area of a circle?
3.14 times radius squared
A box has a length of 5cm, width of 2 cm, and height of 10 cm. What is its volume?
100 cm3 ( 5 x 2 x10)
Which inequality is true?
A. 3 - 2x < -5
B. 1 - 4x > -14
C. -5 -3x < 10
What is -5 - 3x < 10?
How do you solve the following: -14 - 13 = ?
same signs, add and keep the sign, therefore your answer is negative
Probability is?
Part over whole
Total surface area is ........
Finding the areas of all the shapes and adding
a rectaular prism has the dimensions of 6m by 7m by 8m. What is the volume of this rectangular prism?
336 cm3
7x - 3 > 18
x > 3
How do you solve a two step inequaility -3x -4 > 15
Draw the line, Box the variable, add 4 to both sides, divide both sides by -3, flip the inequality because you are dividng by a negative
A bag contains 6 blue, 3 red, and 5 yellow marbles. What is the probability of selecting a blue or a red marble on the first draw?
6 + 3 + 5 = 14 (total)
6 + 3 = 9 (selecting a blue or red)
P = 9/14
Lateral Surface is........
Finding the area of just the sides
What is the approximate length of the edge of a cube that has a volume of 216 cm2
4
-4x - 20 > 50
x < 7.5
John's father gave him 200 baseball cards. Each week, he purchases 25 baseball cards. What inequality can be used to find w, the number of weeks in which John will have more than 750 baseball cards?
25w + 200 > 750
What is the probability of flipping a coin and getting tails and rolling a dice and landing on a 5?
1/12
What is the formula for finding area of a trapezoid?
1/2 times (B1 + B2) times the height
A rectangular tank is filled with 1,050 cubic inches of dirt. If the base of the tank is 15 inches long and 10 inches wide, this is the height of the dirt in the tank.
7 inches