Definitions
Images
Computation
Logic & Reasoning
100
A mathematical sentence that compares expressions.
Inequality
100
Describe the error
Multiplied first instead of subtracting (and did not multiply the 4)
100
The temperature is no more than 71 degrees
t <= 71
100
On a number line, if x > 5, why do you shade the numbers to the right of 5?
Because numbers that are greater are to the right on a number line, numbers that are smaller are to the left.
200
"At most", "no more than", "up to", and "maximum" are all synonyms for this inequality symbol
Less than or equal to
200
Write and solve an inequality that represents x
10x >= 120
x >= 12
200
Eight times a number is less than 72
x < 9
200
Why are they called "inequalities"?
Because one side does not equal the other.
300
Doing the opposite math of what is shown in order to solve an inequality
Inverse Operation
300
Write as an inequality with the variable on the right.
1 > x
300
Solve and Graph
34 >= 40 + x
-6 >= x
300
What types of math operations are terms separated by?
Addition and Subtraction.
400
The math operation that you would use to solve an equation or inequality that had the quotient of a variable and a constant
Multiplication
400
Write and solve the inequality that represents how much more money you need to spend to receive free shipping if you've already spent $24
x + 24 >= 75
x >= 51
400
(5x)/-7 > 20
x < -28
400
The solution of d + s > −3 is d > −7. What is the value of s?
4
500
An inequality that has two possible sets of solutions, with "and" or "or" between them.
Compound inequality
500
If the shaded area is greater than or equal to 12, what is r?
r >= 8
500
A roller coaster holds 12 people per ride. Write and solve an inequality to find the least amount of rides needed for 15,000 people to ride. BONUS: If the park is open for 12 hours a day, is it possible for 15,000 to ride in one day? Why or Why not?
12r >= 15,000 r >= 1,250
no
500
Why do you have to flip the inequality sign when you divide or multiply by a negative?
Multiplying or dividing by a negative reverses the position of a number on the number line, turning a positives into negatives and vice versa. Therefore the sign also has to be reversed to maintain a true statement.