Rational Number Operations
Equations
Inequalities
Proportions
Proportional Relationships
100
The record low temperature in Fargo, ND is -37 degrees Fahrenheit. The record high is 109 degrees Fahrenheit. What is the difference in the record high and the record low temperatures?
146
100
Which equations are true when x=10? (Select all that apply)
a. x/2-4=1
b. -2x+15=-5
c. 25-3x=5
a and b
100
Solve the inequality.
6x-19<5
x<4
100
The ratio of cats to dogs in a pet store is 4:5. If there are 20 cats, how many dogs are there?
25 dogs
100
In general, how do you find the constant of proportionality?
K=y/x
200
A kid's shoe measures 9 2/3 inches. If 5 shoes are lined end to end, then how many inches will they measure?
48 1/3
200
Solve
-7x-25=17
x=-6
200
If x=5, then which equation is true?
A. -5x+2<=12
B. 3x-7>=-16
C. 14+2x<5
D. 1/2x+6>11
14+2x<5
200
If 5 pizzas cost $60, how much will 9 pizzas cost?
$108
200
What has to be true for a graph to represent a proportional relationship?
Straight line, through the origin.
300
There are 24 people in a fitness studio. 3/8 of the people are lifting weights., 1/3 are cross-training, and the remaining people are running. What fraction of people are running?
7/24
300
Solve.
18-6x=-12
x=5
300
Ms. Hernandez is taking her children and their friends to the movies. She will pay $10 for her adult ticket and $7 for each child ticket. Ms. Hernandez does not want to spend more than $40. What inequality can be used to find c, the number of child tickets Ms. Hernandez can purchase?
10+7c<=40
300
In a club, the ratio of boys to girls is 3:4. If there are 21 boys in the class, how many total students are there?
49 students
300
Marcy has earned 18 reward points at the movie theater and will earn 3 points for each additional movie. Write an equation the represents the relationship between y, the total points, and x the number of movies?
y=18+3x
400
Mrs. Sloan is purchasing 3.4 pounds of trail mix that costs $4.25 per pound. How much change will Mrs. Sloan receive if she gave the cashier $20.00?
$5.55
400
What is the value of x in this equation?
42=-4x+8
-8.5
400
Solve the inequality.
-9x+21>-6
x<3
400
A smoothie recipe requires 3 bananas for every 6 cups of milk. If a chef wants to make a larger batch using 10 cups of milk, how many bananas will be needed?
5 bananas
400
Burger Town sells cheeseburgers for $7.95 each plus an additional $1.00 each extra topping, t. Write an equation that represents the cost, c, of a cheeseburger.
c=7.95+1.00t
500
The local volleyball team hosts a concession stand to raise money. They can spend $120 to purchase popcorn, candy, and drinks. They purchase 95 bags of popcorn at $0.75 each and 35 bags of candy at $1.20 each. How much money does the volleyball team have left to spend on drinks?
$6.75
500
If the perimeter of the rectangle is 118 units, the height is represented by 4x+8, and the base is represented by 2x-3. What is the value of x?
x=8.5
500
Solve and graph the inequality.
8-2.1x>-34
x<-20
500
The ratio of mammals to reptiles in the Waco Zoo is 12 to 5. If there are 85 total animals, how many of them are reptiles?
25 reptiles
500
Using this graph, What is the equation? Write your constant of proportionality as a FRACTION. 
y=1/6x