Solving equations
Statistics
Solving inequalities
Systems of equations
Mixed bag
100
Solve this equation (leave your answer as a fraction if necessary):
2x + 15 = -31
x = -23
100
A bell-shaped data set always has this property.
What is symmetry (or symmetric)?
100
What is the solution to this inequality, if the variable is x?
x < 5
100
Is (10, -2) a solution to this system of equations?
x - y = 11
2x + y = 19
No
100
What is the time on this clock?
3:45
200
Solve this equation (leave your answer as a fraction):
3(x-5)=14
x = 29/3
200
How do we find the IQR of a data set?
Q3 - Q1
200
Solve this inequality:
a - 17 > -16
a > 1
200
How many solutions does this system of equations have:
y = -2x + 1
3y = -6x + 3
Infinitely many
200
How many feet are in one mile?
5280
300
Solve this equation (leave your answer as a fraction in lowest terms):
9x − 7 = −6
x = 1/9
300
The two measures of center we learned about.
What are mean and median?
300
Solve this inequality:
32 > -16p
p > -2
300
How many solutions does this system of equations have?
x + y = 18
x + 2y = 19
One
300
Jessica makes $23/hour, and she works r hours per week. If her bills every week are $300 and she saves the rest of her money, write an equation that represents the amount a that she saves every week.
a = 23r - 300
400
Solve this equation (leave your answer as an fraction in lowest terms):
x + 2(x - 4) = 3 + x
x = 11/2
400
The three measures of variability we learned about.
What are MAD, SD, IQR?
400
Solve this inequality:
-12 > 2x - 7
x < -5/2
400
Solve this equation by substitution:
y = -x
y = 2x + 6
(-2, 2)
400
Which room number are you in right now? (If you leave your seat to check, your team will lose points.)
230
500
Solve this equation (use fractions, in lowest terms):
1 = x + (5 + x)/5
x = 0
500
If a data set is skewed right, how are the mean and median related?
Mean > Median
500
-3 > -4x + 19
x > 11/2
500
Solve this system of equations by elimination:
x + y = 8
-x + 3y = 4
(5, 3)
500
The blood type that is the universal donor.
What is O - (O negative)?