Expressions & Equations
Simplify: 3x + 2x
5x
What is the constant of proportionality in the equation y=1/2x?
K = 1/2
What is -3 + 5?
2
What is the formula for the Constant of Proportionality?
K=y/x
What is the mean of: 5, 6, 7, 8, 9?
7
Solve: 4x - 3 = 13
x = 4
If Jane spends $3 for 12 apples, how much does one apple cost?
$0.25
What is -4 × -2?
8
What is the formula for circumference of a circle?
C=3.14D
What is the probability of flipping heads on a coin?
1/2
2(x + 3) = 30
x = 12
If 3 books cost $9, how much do 5 cost?
5 books = $15
What is -78 + -37 =
-115
What is the formula for area of a circle?
Area of a circle = 3.14R2
Find the median: 1, 4, 5, 7, 9, 11
6
Distribute and Combine:
2a - 5 (a + 1)
-3a - 5
Hailey can read 5/8 pages in 2/3 minutes. How many pages can she read in one minute?
15/16 pages
What is -51 + 35 =
-16
What is the formula for area of a parallellogram?
bh (base x height)
What is the probability of landing on a number greater than 2 on a 6-sided dice?
4/6, which simplifies to 2/3
Distribute and Combine:
47 + ½ ( 2 y – 4 )
y + 45
Will spent $3.75 for 3 pounds of granola. What is his unit rate in dollars per pound?
*Bonus for 100 extra points: How much would 5 pounds cost?
$1.25 for 1 pound
Bonus: $6.25 for 5 pounds
What is 15 (-12)
-180
What is the formula for area of a triangle?
bh/2 (base X height/divided by 2)
What is the interquartile range of the data set?
15, 16, 17, 20, 22, 25
6