Proportions
Solve the proportion: b/5=28/35
b=4
A famous irrational number, sometimes referred to as 3.14.
pi
A letter used to represent an unknown number.
Variable
Experimental probability is?
What actually happens
A shape with 5 sides.
pentagon
If you bake 120 cookies in an hour, how many cookies were baked per minute?
2
negative x negative =
positive
Solve for x: 3x=12
x=4
Theoretical probability is?
What should happen
A shape with 10 sides
Decagon
5 erasers cost $2.50. How many erasers can you buy for $7.50.
15
-27 + (-3) =
-30
Use the distributive property to rewrite 3(5x-2).
15x-6
The odds of rolling a 6 on a six side cube.
1/6
What is the formula to find the area of a triangle?
1/2bh
On a graph what point must a proportional ratios must pass through?
(0,0)
What is 1/4 as a percent?
25%
If n stands for a number, write the following phrase as an expression. Eight less than six times a number.
6n-8
What are the odds of tossing a coin twice and getting tails both times?
1/4
What is the volume of a rectangular prism that is 3 cm wide, 2 cm high, and 10 cm long?
60 cm3
If you paid $13 for 3 gallons of gas, how much is it per gallon?
$4.33
Write 75% as a fraction.
3/4
Solve for x: x/8 + 4 = 6
x=16
A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?
5/6
What is the surface area of a rectangular prism with a width of 2 m, a length of 3 m, and a height of 5 m
62 m2