Geometry and probability
Simplifying Expressions
Math
Solving equations
Math Vocabulary
Random
100
True or false
a coin is equally likely to land on heads or tales.
yes. a coin only has 2 sides.
100
Simplify the following expression: 2(x + 7)
2x + 14
100
Write an inequality that represents the following:
No more than 40 kids can fit on a bus.
x ≤ 40
100
−12 × −8
96
100
What does inverse mean?
reciprocal or opposite
100
What is the total of all angle degrees in a triangle?
180
200
you have a circle with a radius of 5cm. What is the circumfrence of the circle?
C= 2(pi)r
31.4
200
Simplify the following expression: -4x - 7x + 9
-11x + 9
200
At the start of the month, the value of an investment was $48.45. By the end of the month the value of the investment changed by a loss of $13.80
What is the value, in dollars, of the investment at the end of the month?
200
| -4 + 9|
5
200
What is a synonym for constant of proportionality?
unit rate
200
A graph is proportional when
The line passes through the origin
300
The scale on a map shows that 5 centimeters = 2 kilometers.
What number of centimeters on a map represents an actual distance of 5 kilometers?
12.5
300
8y + 2 = 50
y=6
300
re-write the following equation as an expression using the distributive property
14x - 16
2(7x - 8)
300
If x=3, what is the value of 7x-19
2
300
what is probability
The likeliness that an event will occur
300
What is the constant of proportionality?
15
400
A circular mirror has a diameter of 12 inches. What is the area, in square inches, of the mirror?
12(3.14)
400
Simplify: 5 + 3(7x - 2)
21x + 3
400
Keke throws a diving ring into the pool from 3 feet above the surface of the water. From where she throws it, the ring falls 11 feet to land at the bottom of the pool. Write an addition equation to model the problem.
3 + (-11)= -8
400
x + 4 2/3 = -3 1/2
x = -49/6
400
What does it mean when an angle is supplementary?
The sum of the angle(s) is is 180 degrees.
400
Jessica rented 1 video game and 3 movies for a total of 11.50.
The video game cost $4.75 to rent. The movies cost the same amount each to rent.
What amount, in dollars, did Jessica pay to rent each movie?
$2.25
500
Esteban bought 15 bananas for $11.25. Find the unit rate using equivalent ratios. Show your work
$0.75 per banana
500
6 -2n> -14
n > 10
500
Write the equation that represents the situation below:
Tom works 40 hours and earns $800.
*Hint - find k first
y = 20x
500
145 = -5x
x=-29
500
What is a rational number?
a number that can be turned into a fraction - but as a decimal, it is either a terminating or repeating decimal.
500
What is the original price of an item that was marked up 20% and is being sold for $40?
40 = 1.20x
$33.33 = x