Unit Rates
Independent and Dependent variables
Proportional relationships
Simplify Expressions
Random
100
Sammy earned $100 in 10 hours of work.
$10/hour
100
Explain the difference between independent and dependent variables.
Independent: A quantity that changes independently of anything else.
Dependent: A quantity that changes depending on how the independent variable changes.
100
Define: Proportional Relationships
Comparing two or more quantities continuing at the same rate.
100
Simplify the following expression:
5(4) + 3(7) - 6(-2)
53
100
Mr. Lopez's cat goes by several names. What is his real name?
Shackleton
200
Given bought 15 lbs of fish for $56.85.
$3.79/lb
200
Determine the independent an dependent variables in this situation:
Dollars per Hour
Independent: hours
Dependent: Dollars
200
Determine the constant of proportionality for the situation below.
Victor made $90 in 6 hours on Monday, $60 in 4 hours on Wednesday, and $135 in 9 hours on Friday.
COP: 15 or $15/hour
200
Simplify the following expression:
3x + 2y + 4x + 7y+ 9x
16x + 9y
200
What year was Friday Harbor established?
1909
300
Gustav ate 1104 nuggets in 12 minutes.
92 nuggets/min
300
Determine the independent an dependent variables in this situation:
Size of a pizza and the cost
Independent: Size
Dependent: Cost
300
Does the following situation represent a proportional relationship?
Davy Jones was 1.5lbs when he was born. He then grew at a rate of 2lbs/week for the next 5 weeks.
No. His weight at 0 years old is not 0 lbs.
300
Simplify the following expression:
3(x + y) - 8(x + y)
-5x - 5y
300
How many named islands are in the San Juan Islands? (It's more than you think)
172
400
Henry collected 7920 toenails in 30 weeks.
264 toenails/week.
400
Determine the independent an dependent variables in this situation:
Money made and tickets sold.
Independent: Tickets sold
Dependent: Money Made
400
Which line(s) represent a proportional relationship?
C: Blue. because is is a straight line and goes through the origin (0, 0).
400
x(4x + 3) + 3(x + 7) - 19
4x^2 + 6x + 2
400
Mrs. Bohn appeared on which TV show?
Christmas Cookie Challenge
500
Mrs. Bohn decorated 390 cookies in 1 hour. What's her unit rate in cookies/min?
6.5 cookies/min
500
Determine the independent an dependent variables in this situation:
Tricks Davy Jones does and the treats he gets
Independent: Tricks
Dependent: Treats
500
Create a situation that would represent a proportional relationship.
Student responses*
500
Simplify the expression below:
x(3 + 9x) + x(2x + x) - 4x
-x + 12x^2
500
Name the four members of Mr. Lopez's immediate family.
Mom: Kim
Dad: Paul
Brother: Josh
Sister: Emily